I'm looking to replace my development box.......

Is it worth getting a 6 core processor or should I save and get a 4 core?

Here's what I'm looking at:

ASUS M4A89GTD PRO/USB3 Motherboard (has SATA 6gb)
AMD HDT90ZFBRBOX Phenom II 1090T Black Edition Six Core Processor (3.2Ghz)

The bundle cost is $389.99 (it ain't cheap, but it's got some power)

Plus 8gb of RAM, 750w power supply, DVD, 1GB Harddrive, Case and Win7 Pro.

Scott Hanselman did a nice series of blogs in the subject - Building your own Ultimate PC - there you find what is important and more important :)

http://www.hanselman.com/blog/Categor...

It will be my primary Visual Studio development machine.   Will also run the usual business apps like Word, Excel, Quickbooks, etc.

It's unclear to me if VS takes advantage of the mutli-core processor.  I'm trying to buy for the future, but also be reasonable.  I am really tired of having to wait on my machine when doing ASP.NET/DotNetNuke development.  Desktop app develop is much faster on my current box, but when writing DNN modules it seems I can run to the mailbox every time I compile.

If SSD drives were cheaper, I'd put one in it.  I know that VS does a lot of disk I/O when compiling, so I would probably get a lot of bang with a SSD.

Will I really notice much difference with a 6 core verses a 4 core?

Should I run Windows 7 Pro or Ultimate?  32 or 64?  I'm thinking Win 7 Pro 64.