ive got the GoPro 960 and i love it...
Its like dirt cheap which is awesome if your on a budget, if you record on 960 and upload to youtube it recognizes it at 1080, or it did for me at least. the only setback is that it doesnt have the capability of the add-ons like the hd hero (lcd and battery backpack and the 3d hero) but i love it and for like $150 its totally worth it, but u can find the hd heros cheap too so its really just up to how much money u have