Is this a good storage server upgrade?

My 24x7 storage server is currently running an old AMD X2 BE-2300 45W that I bought in 2009. I believe the system is about to blow since windows is constantly slowing down to a crawl and it is showing memory issues and overall slowness even after a fresh install. Either way I'm not investing more money into an old architecture.

This is what I am looking at:

Mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813132097
CPU:
http://www.newegg.com/Product/Product.aspx?Item=N82E16819113365
$94 total
I can put a 4GB stick of RAM from another system.

My only deal is that this socket only offers 2x SATA ports which sucks.
Should I forget about the platform entirely and buy something different with more ports (although the 25w is really appealing)
Or what sort of SATA expander should I consider thats decent?

Why not get a cheap PCIe SATA card?

Are they reliable and allow me to use SMART the same as if it was plugged directly into the SATA port?

Yes and Yes.

Can you recommend an 8 port for me? Any brands to stay away from? Newegg has so many I'm kinda overwhelmed on what is decent and whats junk...