as mentioned elsewhere, the only wall i've had to scale or think i will ever need to scale is in ram. the newer vst sample plugin libraries want 16+ gb of ram, and i'd need to get to 64-bit to do it. that's a potential driver nightmare. it's likely workable, i just don't want to do it until i have to.

i'd have to reimage, to start with. it took a long time to build that image, and i don't want to even think about it. but, i'd certainly use 64-bit xp, fwiw. there's no benefit in upgrading; i just keep the machine offline.