To the best of my knowledge, all laptop drives are the same, except for the SATA drives. With 44 pins, it's got to be an IDE drive.
Toshiba and Seagate seem to be the most popular drives with most manufacturers.
In some towns, you can go into a store like Staples, Best Buy or Circuit City and buy them right off the shelf.
Call around your area and see who's got one they'd like to sell you.
Good Luck,
The Doctor