While an SSD would be nice, there expensive and if you have the extra cash, you would be better off buying more ram for what you plan on using the computer for.
The AMD system runs it's memory in a Dual Channel configuration so you want to buy pairs of memory as in, 2GB (2x1GB), 4GB (2x2GB), 8GB (2x4GB). But the mobo has (2) pairs of memory slots (4 slots total) so you can run (2) sets of memory as in, 4GB (4x1GB), 8GB (4x2GB) or 16GB (4x4GB).
The Intel i7 run's it's memory in a Triple Channel configuration so you buy memory in sets of 3 as in, 3GB (3x1GB), 6GB (3x2GB) or 12GB (3x4GB). But the mobo has (2) sets of memory slots (6 slots total) so you can run 2 sets of memory as in, 6GB (6x1GB), 12GB (6x2GB) or 24GB (6x4GB).
If I have time later I pick out some parts for a i7 system.