I'm with alexh on this one. Love the Amiga though I do, the thought of having to use on exclusively for my web browsing needs is enough to keep me up at night. Conversely, the idea of using a modern computer for my gaming needs is guaranteed to bore me to the point that I'd sleep all night and day.
Slightly OT: If you dig Commodore 8 bit and Amiga computers and you've got a Mac, check out Doremac
It's an unfortunate name and the place doesn't see much activity but it's a start.