I tried it (ultimate - msdn via work) on my home box ... Core 2 Duo 6600 with 2gb, modern ATI card (not a gaming one)... simply put ... it was slow... decision to get back to XP was simple - since then also replaced an XP laptop by a Macbook Pro - and happy since :-)
ta
Tom UK
PS: yes this is posted from my sofa-surfing laptop w2k 450Mmhz dell.... good enough for this