test hdd speeds:
hdparm -Tt /dev/hda
device information:
hdparm -I /dev/hda
or
hdparm -i /dev/hda
or
hdparm -v /dev/hda
hdparm has to be done logged in as root, as far as i know. won't work if you su into super user mode. also check out the man pages for any other things that hdparm can do.
there's some other benchmarking tools also. like lmbench (that's "Lmbench").
edit: hmmm.... a tad on slow side today i are....