As your new TV no doubt has built in freeview, then you don't need twin tuners on the HDD/DVD recorder unless you really, really think you are going to want to record two freeview channels whilst watching a third one through your TV. You don't need twin tuners to be able to pause live TV - my Panasonic does it just fine with the one tuner, but only if it's not already recording something else.
If you still have your video player, then it's not a difficult job to connect it to any HDD recorder and record from your tapes to the HDD or even straight to DVD. You certainly don't need it built into the new machine.
There are some very good forums about HDD and DVD recorders at
http://www.digitalspy.co.uk/forums/forumdisplay.php?f=90 and at
http://www.avforums.com/.
Personally I wouldn't get just a HDD recorder without the facility to copy to DVD for the following reasons:
1. I like to transfer things to DVD so that I can watch them in the bedroom, or the kitchen. I don't like being tied to the living room to be able to watch stuff I've recorded.
2. I had a Sony HDD/DVD recorder fail on me a couple of years ago. Because I transfer the bulk of what I record to DVD I lost very few recordings. If I'd not had the ability to transfer to DVD then I'd have probably lost a couple of months' worth of TV. As I record just about everything I want to watch these days, rather than watching live TV, that would have been a
lot of telly.
3. My hubby recently managed to hit a few wrong buttons on our current Panasonic recorder and deleted everything that had been recorded. As with no. 2 above, that wasn't too big a deal because, again, most of the recorded stuff had been transferred to DVD. Don't worry that this could be too easy to do though - he has no idea how he did it and we haven't been able to duplicate what he thought he was doing with what he actually did!
4. If I see a TV series that I absolutely love I can burn myself a permanent copy of it. It's very easy to edit out all the adverts and bits I don't want so I end up with exactly what I do want.
We use re-writable DVDs so we treat them just like VHS. We record to the hard drive, copy it over to DVD, watch the DVD then use it again for the next thing we want to copy. It's quite quick to do this as a one hour programme on the Panasonic takes around 13 minutes to transfer onto a DVD. On my old, dead, Sony it took, IIRC, about 4 minutes.
Things to look out for:-
The ease of "padding" a programme time - i.e. adding a few minutes to either end of a recording. This was so convoluted as to be virtually impossible on the Sony (this was an older model so may have improved now), but is dead easy on the Panasonic.
One annoyance with the Panasonic that I've currently got is that there is no disc eject button on the remote control which I find very strange and a bit of a nuisance, but it's not a deal breaker.
Check what type of RW discs you need to use for fast copying from HDD to DVD. On the Sony I seem to remember I had to use +RWs, whereas on the Panasonic I have to use -RWs. You can use the opposite type, but then it can basically take the full time of the programme to do the transfer. This is apparently caused by the TV companies broadcasting the programme in one aspect ratio and the idents/adverts in a different one.
Buy your DVDs online - much, much cheaper than in most shops.
I believe that some of the newer machines have a "series record" facility whereby you can just tell it that you want to record the whole series and it will happily do so. Mine doesn't have this and I wouldn't buy a new one just to get the facility, but if and when mine packs up it's definitely something that I will look into.
Apologies for the length of this post, but I know that HDD/DVD recorders are still quite expensive, and aren't the easiest thing to make a decision about, but I have to say that you could only take mine away by prying it from my cold, dead fingers. In fact, I have two of them, although the one in the bedroom was an old one from my mum and only has an analogue tuner. I absolutely love being able to watch exactly what I want, when I want to and never, ever having to watch adverts and the dreadful "coming next/what you've just watched" rubbish other than at very high speed.
Julie