yeah, as far as the games, you could probably play some of the games you like (i.e. Half-Life) and with some work, you could also get Q3 going....but if you do make it a linux box (which I'd like to see if you ever get it done

then I would recomend you installing Mandrake, I've heard that that version is far more user friendly than Redhat.
A couple side notes: Mandrake is based upon redhat, and I THOUGHT i remembered hearing somewhere that Mandrake couldn't do as much....maybe someone in here could clear that up?
Also, I don't know what version of Redhat you have, but as far as the easier installation, that problem could have been fixed in later versions, I've been out of the loop for this kind of information for quite some time now....
[edit] about the games too, the only way I have an opinion on that is b/c of the article on PCA's page....here's a direct link to the site:
http://www.livepc.tv/?articles=1&sC=28&= hope this helps...