I’ve been looking at fans to replace some old ones in both my computer and my mother’s so I thought this would be a way to keep track of the best deals, and help you guys out at the same time.

A warning though. All this stuff is at Electronic Goldmine, and the minimum shipping charge is $7. They add to that in tiny amounts as you add stuff to your shopping cart. So if you buy a list of things the shipping is great, but its not worth it for one thing.
40mm Fans
Delta DFB0412H / 0.1amp / 0.96watt / 7400rpm / 8.1cfm / +30dBA
$1.35
Older Model; good air pressure; loud fan so probably better for a server
50mm Fans
Delta EFB0512HA / 0.10amp / 1.2watt / 5500rpm / 11.40cfm / 4.24 mmH20 / 30dba
$0.89
Good fan w/ excellent air pressure (is a modern model)
80mm Fans
Shicoh 0820-12 / 2.64w / 0.22amp / 23.66cfm / 2.50mmH20 / 30dba
$1.25
Good fan in pairs for low air flow, quiet applications.
120mm Fans
NMB 4710NL-04W-B50 / 6.84w / 0.57amp / 2400rpm / 90cfm / 39dba / 4.57mmH2O
$1.99
Good higher output fan; lower noise than cheap 120mm consumer fans at Newegg. Should be tamed.
Other Cooling Stuff:
60 x 60 x 14mm Aluminum Heatsink
$0.99
4 7/8"L x 2 3/16"W x 1 1/4"Tall Aluminum Heatsink
$2.98
3" x 3 1/8" x 1 5/16"H Aluminum Heatsink
$2.98
5 3/8"L x 2 1/16"W x 1"H Aluminum Heatsink
$2.98
Super Cooler! Peltier Heat Sink & Fan
$11.95
Good price since peltiers start at $25, and copper plates start at $7, so about $20 savings. I don’t know anything about Peltiers, but I’d probably trash the heatsink and find out how to rig up my own.