Mac Pro 5,1 processor compatibility?

I have a 2010 8 core 2.4GHz Mac Pro and for curiosity's sake I wanted to know what my options were in terms of upgrade? I just got the unit, so no changes are immediate. But it's my understanding that I could eventually swap the 2.4 chips for faster 3.33 chips or whatever may come along with the Westmere cores? I do understand the memory would need to be upgraded as well.

I would have said don't buy 2.4GHz, and skip on 8-core. Inside the 14 days? would have been nice to read and ask here, and check out
http://www.macperformanceguide.com
You could buy low end and drop in a faster 4 or 6-core is much easier and cheaper to buy (W3500/3600) on single processor as even i7's work.
I don't know if Xeon will ever drop or be cheap enough to be reasonable upgrade. And then usually the BIOS (EFI) has to support said new processor or stepping, which may not happen (Apple doesn't do EFI updates for such things, they sell new models).
SSDs, adequate RAM, depends what you do, and whether you need Quadro 4000 or what software. Nehalem brought the memory controller into the processor and MacSAles does have a Mac Pro cpu Turnkey program, but way expensive.
The memory you have should be fine, but I would stick to ECC and forget any bargain buys.
I prefer shop these instead of new usually
http://store.apple.com/us/browse/home/specialdeals/mac/mac_pro

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    IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
    IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
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