Rio

I'm thinking of getting a new phone. I really want a phone that has internet capability mainly because I'm constantly on the go and lugging around my phone, bulky laptop, and ipod everywhere just for the things I need is no longer an option. I'd really like to pretty much narrow it all down to one device. I'm not giving up my laptop or ipod but just upgrading my phone. Really I don't mind carrying around a phone and my ipod, the laptop is the issue. So: I really want a phone that I can have unlimited internet access capabilities, being able to use the internet in a more realistic manor-not the mobile version of the web. (I'm assuming that's unlikely to get on any phone...but whatever). I'm also addicted to youtube.com so being able to download and watch videos from my phone is a must! and of course being able to use the phone as an actual reliable phone is a must! O btw, I know some phones can be used as modems to connect to the internet through a laptop, if the phone could do this and I could eliminate my wireless bill, that would be awesome! I guess the better phone services is also an issue so whichever phone can provide what I stated above and comes with a good service plan is what I'm looking for. So again the Tmobile Wing, Tmobile Blackberry Curve, or AT&T's iPhone? Which should I buy? Which is gonna give me more bang for my buck?