Currently running a Dell 8400 Demision. A few years old but the new version of quickboks 2007 & 2008 take up alot of harddrive space. Thinking about new computer for biz ONLY and keep this one strictly for net use, family stuff etc. That way no cross over to get viruses etc off the net. Wondering what systems you guys run? Why you like one over the other? Money well spent or not? Would you get a desk top vs a lab top computer?