It should be workable, my system is only a PIII 850 with a mere 526meg of RAM and I have rendered the Warraok 'sails out' with a fully clothed V3, fully clothed M3, treasure chest, Lyne's parrot, and a few other props and an imported BG pic (the clothing was all pirate outfits). So if I can pull off a render like that then your mere 100,000 polys shouldn't eat up too many crackers ;p