Not sure what the seek times are on them ill check it out here in a bit, but yes 150's, lol replaced standard 160IDE with them.
got the specs on them, they are as follows.
Performance Specifications
Rotational Speed 10,000 RPM (nominal)
Buffer Size 16 MB
Average Latency 2.99 ms (nominal)
Contact Start/Stop Cycles 20,000 minimum
Seek Times
Read Seek Time 4.6 ms
Write Seek Time 5.2 ms (average)
Track-To-Track Seek Time 0.4 ms (average)
Full Stroke Seek 10.2 ms (average)
Transfer Rates
Buffer To Host (Serial ATA) 1.5 Gb/s (Max)
Buffer To Disk 84 MB/s (Sustained)
Physical Specifications
Formatted Capacity 150,039 MB
Capacity 150 GB
Interface SATA 150 MB/s
Number of Platters 2
User Sectors Per Drive 293,046,768
and as far as upgrading other components, i dont have much else i can upgrade on my system, already got pretty nice graphics card etc.. only thing other than drives i could upgrade would be processor or add more ram.