I'd go with either a Crucial m4 or Samsung SSD, personally. They're pretty cheap nowadays so you might consider grabbing a 256GB version. As for the CPU, just get an i5 3570K / i5 2500K or something. Plenty of power for games (they perform pretty much equal to their i7 counterparts) and cheaper than an i7 2700K. CPU performance hardly differs in the top range.