Data transfer problem

[pgcharlie]

hi.. i have 3 hard disks connected 2 sata (1TB and 500GB) and a 80GB IDE.. i m having problem transferring data of any kind between these drives.. or to a pendrive.. .. what could be the efficient transfer rate for 40GB between sata and IDE.. it took me 30 mins flat to get that transferred with unable to run any other software or watch a movie from the drive itself (kept freezing)..

my system specs..
i3 540 processor, Asus P55 mobo, 2GB DDR3 1333 MHz ram, ATI 5750 graphic card.

pls guide...