To cut a long story short, I've built a budget PC for surfing the net. It uses an Asus M4A88T-M Mobo, Athlon ii x2 cpu, 2gb of 1600mhz ram, An Lg drive, Coolermaster elite 360 case and antec 400w psu.
My hardrive of choice, a Samsung Spinpoint is out of stock for 2 weeks and im desperate to get the PC running soon. So i plan to crack open a un used Dell Dimension 4100 at work and use the 20gb IDE HDD in my build. I've checked the mobo and it has 1 ide connector. My only worry is if the hdd will fit in the case. The drive bay is 3' x 1/3 but i havnt a clue what the dimensions of the ide drive will be. If anyone knows please help me out.
The link you've provided to the HDD shows the size as 10.2cm x 14.7cm. Aka 4" x 5.75". This will have a form factor (i.e. the size of the disk platter inside the casing) of 3.5" which is what the system unit takes. I.e. it fits.
"Expansion Bays Total (Free)2 ( 2 ) x front accessible - 5.25" x 1/2H" - 1 bay for HDD and 1 for optical drive - if you have 2 optical drives woodchip's answer would seem to be the only solution. The smaller bays are for floppy and /or card reader as said.