This SSD from Plextor is quite good. Much better than Sandisk Extreme SSD 240gb.
Model PX-256M5S
Capacity 256GB
Buffer 512MB DDR3
Sequential Read Speed (SATA 6Gb/s) Up to 520 MB/s
Sequential Write Speed (SATA 6Gb/s) Up to 390 MB/s
Random Read Speed (IOPS 4KB) Up to 73,000
Random Write Speed (IOPS 4KB) Up to 70,000
Power Consumption 0.25W (MobileMark)
MTBF >1,500,000 hours
Warranty 3 years Plextor''s Warranty Service
How does it compare to the Samsung 830?