I think those first generation SSD drives were not so good.......but the new ones like Intel X25 and the OCZ Vertex are shredding 300gb Raptors 
For instance:
500GB 7200 RPM drive - 64.3MB/s avg.write
300GB 10,000RPM Raptor - 99.3MB/s avg.write
OCZ 60GB Vertex- 137.0MB/s avg.write
Raptor 300gb Access time = 7.4 ms
OCZ 60GB Vertex Access time = 0.1 ms
and windows boot time goes from 28 seconds on a 7200 drive, to 15 seconds on OCZ Vertex.
For instance:
500GB 7200 RPM drive - 64.3MB/s avg.write
300GB 10,000RPM Raptor - 99.3MB/s avg.write
OCZ 60GB Vertex- 137.0MB/s avg.write
Raptor 300gb Access time = 7.4 ms
OCZ 60GB Vertex Access time = 0.1 ms
and windows boot time goes from 28 seconds on a 7200 drive, to 15 seconds on OCZ Vertex.
