It's been about a couple weeks that I've been running Th2go, I know I had lot's of questions when making the choice to do it. So I hope this will help others get an idea of what to expect.
first off, I already had a 24" monitor, so getting two more was the obvious thing to do. If I was buying three at once I think 22" would be the way to go, because even if it let you run native res. I don't think you could build a computer that could power them. I was worried (as I'm sure most do) that my computer couldn't handle it. q6600/ 8800gts 320. at 3840x800 I was able to get in the 50 "ish" fps range If I turned down most all of the graphics (aa, af, and eye candy) I still gets sluggish with lost of cars packed together though, 40-50 frames I think. so if you like your game to look nice you may be a little sad with how it turns out:)

As far as game play goes...oh my friggin' god! It took a couple hours to get used to the stretch on the side screens.but after that it rocks! even If you aren't passing anyone (not looking to the side), just the sensation of speed it gives is something else.

despite my brothers good advice to just leave it and deal with the somewhat crappy graphics, I just couldn't help but think of how much graphics memory those monitors were needing....so after much thought I got a gtx260. I'm still running 3840x800, but at x16 AA, x16 AF, and almost full everything in RF, including max shadows! at the back of the pack at the start of a race I get 55fps, up to 80+ after a few turns. every thing else other than psu is stock acer. so if you got $300 for a gfx card I strongly recommend it for th2go users and those thinking about it.

You are a money spending machine.

Darren, thank you for that info. I have been considering purchasing the Th2go. I need to upgrade first...

I know, but this is it, I'm totally done for a long time now....said that before. If only hardware made me faster:) but hey, if it adds to the fun factor, them that's just as good to me. I still compare my setup to a big screen ($1200-$2000)so it's not that crazy. but yah, I have to stop here, anymore and I'm going to have to live in my cockpit to justify the spending. but it has caster wheels now, so I could commute to work in it and sell my car:)

You have to stop trying to maintain a 4x4 truck and an expensive RC truck habit to justify it. :)