Thank you desiibond and damngoodman999 for your suggestions.
I was checking last week for Hyper-V on Gigabyte GA-EX58-UD5 and finally found that F4 BIOS update resolve the issue.
Will update you after purchase.
Thanks again.
you can do virtualization on all systems, that is software virtualization.
a processor supports virtualization means it supports HW virtualization.
core i7 are big winners of multitasking sure, because multiple core matters.
Also, in case of RAM you need loads of RAM, you would be knowing if you have got your experience on it. I do vmware based virtualzation for my own work, but the proccy does not supports HW virtualization. Idly you will be able to run 4-6 VMware based virtual machines with good performance(in fact very good) with this setup(if you do SW virtualization). HW virtualization is quiet a boost, but I have not done it yet. Also, the thread link you gave is for virtualization of 64-bit OSes, and they I think need HW support.
HW virtualization is big step. You need to little bios setting for that.
SW virtualization I have seen are RAM hoggers. So generally you put 1GB RAM per VM and that is why I said 4-6.
for gfx card get something cooler. HD4850 will require quiet much power and will have higher temps.
as per your needs dont go more than GTX250, if not much in playing games.
Buy 2 HDDs, virtualization is equally strainful or HDDs. so keep your OS and VMs on separate HDD(not just separate partitions).
try buying cheap HDD 2nd hand from bazaar section, if u wanna increase performance and life so that you are able to run one VM on one HDD.
also a bigger screen helps. Because you will certainly want to run VMs are in 1024x768 or lil better 1180x864 for better visibility. I run RHEL5, and most of the windows fill up the whole screen in case of 800x600 res. get Dell S2409 it will be nice, can get in around 13K
finally get good good cooling for i7, also i7 vs Q9550 you will find quiet a big difference in virtualization and multi-tasking
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also, not just that you can use external HDDs to for doing your VM setup.