For MOST users Home version is all that is needed.  I seen a lot of blogs that say Home is all that is needed.   But, best to ask the what do I buy questions in that forum section  Click Me
I am new to these forums, but have questions already.  I am customizing a XPS8300 that I plan to buy soon.  All the options seem to be in order except the OS.  I can't decide whether or not to choose Win7 Home Premium or Win7 Professional. I know Win7 Pro is better (especially since I have a home network), but it adds $130 to the total.  I could save by going with Win7 Home right now and upgrading to the pro version later at about half the cost.  However, I have a feeling that not getting Win7 Pro right away would possibly cause an issue or software problem some time in the future. What do you think?
Win 7 or Win7 Pro?