You haven't tried the Babyliss Big Hair? This is ionic and makes my hair wild. I'd ordered off QVC and had considered returning it as I can't turn the ionic off. I'm glad I didn't, though, as I've since bought a L'oreal Steampod. I have Crystal Tips hair that I've never been able to control, though the last 10 years have battered it to death by blow-drying (in my very ham-fisted way), then beating it to submission with GHDs.
The result has been straight-ish hair that goes frizzball mental at the slightest puff of wind/spit of rain/tough of humidity. It's also recently started to look dry and straw-like due to the heat process I suppose.
Well, now I allow it to dry normally, give it some bounce with the Big Hair and then finish with my hero, the Steampod. This alone has given me the most fabulous, sleek and healthy-looking hair I've ever had. AND the style stays in, even in this stormy weather we've been subjected to.
If you do straighten, check out the reviews on Lookfantastic.com (and Amazon I think) for L'Oreal Professional Steampod. I was considering going short before using mine. Now, I will never be parted from it!
HTH some.