Okay so For a few weeks i've had a wireless internet card from AT&T. I got about 15KB/s download speed. I was able to play online games and ran my 360 thought it and lagged very little on Halo3. Cons were that it messed with my speakers something aweful, and when it rained it got worrible signal. So i decided I had had enough of that.
Today I took back my card, said i didn't want it anymore and imediatly drove to Alltel. Alltel has aweful serivce around where i live, maybe two bars on a good day. But I work in the city about 20mins away. Alltels card is getting me about 180 to 220KB/s and gets great signal where i live. seriously 210KB/s is not at all rare. My home broadband only gets 30KB/s or so. I'm going to get a usb capture card for my laptop and play on xbox live while at work.
*edit* P.S. I forgot to mention that i live nowhere near any 3g networks