I looked through all the case that could possibly be (top mounted PSU, 4 external 5.25" bays, 1 external 3.5" bay, no side window), and saw nothing like that. I can tell you that's it's really old. Newer cases have bottom mounted PSUs and have at least some kind of audio/USB/other jack on the front of the case. Also, it looks like it will only have one fan in the back, so it's not going to have very good cooling.
I'm assuming you're buying it off a used site. You'd probably be better off telling us what you wanted to spend, and we could find you a shiny new case for that price that will be higher quality and have some nice features.
LOL! Actually it is my case and it's about 4 years old. Yes it does have a top mounted PSU. I have installed 1 80mm exhust fan in the back near the top. I have also installed 2 80mm fans in the front to bring in air.
I running WinXP Pro, 2 Western Digital 80 GIG IDE drives and 1 Western Digital 320 GIG Sata drive off a Serial ATA PCI card, a DVD/CD burner, a floppy drive.
I have a ASUS A7V400-MX motherboard and a AMD 2000 XP CPU.
Just wanted to find the make of the case because I forgot and don't have the original paperwork.