Having it be dedicated is a huge plus. You probably know this, but it was have to be 64-bit to have more than 3.2 GBs of RAM. Get an SSD.
Get an SLC SSD aka Enterprise SSD as these have greater longevity and reliability, if you want an SSD. The price of SLC SSDs is still rather prohibitive. Also, given the small size of the AC database, most of it usually sits in RAM. I wonder how beneficial an SSD would be for Amazing Charts. Don't get an SSD if you're getting SBS 2011 because Microsoft recommends 80 GB minimum for SBS 2011. It would be better to get an HDD.