After posting this I jumped on Ebay and found (2) matched X5470s I believe for $100.

I'm a little surprised you were able to max out the ram with a single cpu. It's been a good five years since I worked at Dell, so maybe the engineering limitations have been fixed, but back then, systems with more than one cpu had it's own memory bank for each processor
I had tons of trouble with this MB until a BIOS update came out months later. Not sure its actually using the full 32GB ram. The BIOS sees it and Windows sees 32GB.

Back to the SSD drives anything I should be looking at or avoiding? I haven't bought for performance in mind. My experience has been SSD hell ya, buy.