I love mine. I got mine for $1100 last month, and put in a 320 gig 7200 rpm seagate drive and 4 gigs of ram, and it is quite usable. I've got to warn you though, mine is a matte screen, and I've come to prefer it over the glossy uni mbp. I have not noticed any heat issues with my machine, even with the faster hd.
Unless you're a true power user, you'll probably not tell a difference between it one of the new ones in everyday use.
mac2sell.net lists its value at $1170, and their quotes tend to be a bit on the lowball side, so you're getting a hell of a deal.
I also chose the 2.33 because of the ati card, and wanted to avoid buying a $1500 dollar paperweight.
And yes, I know my machine can only use 3 gigs and change, but I wanted to use every last bit of ram I could in dual processor mode, especially with ddr being to cheap.
It's not that bad at all to replace the hard drive. Maybe half an hour. I'd say for it, and enjoy!