Unfortunately I'm stuck with xp for a while. Most of the plc programming software I use is not vista/7 compatible and I have a lot of old engineering programs that also don't run under 7. Even the stuff I can buy "upgrades" for would run me about $4k usd, a bit much for me, especially since these programs are not what need the performance increase (word, excel, etc...).

So, buy the Dell multi quad?