since u live in the uk ... use forematt , great shop.
and yes it will run on yer setup , but speedwise...well it will be faster than GL quake is atleast but not as fast as blitzquake (voodoo3 only)
forematt might not have it on the site , if they dont..just email them and ask!...
cheers
pps:cheapest is probably in germany but since u live in uk,well it would get expensiver due to post/packagging and tzoll .--