Just bought some steel 30 rounders for $22 and $35 locally (one was unwrapped). KVar has a few in stock for $40+, might not get the color and or style you want but you don't sound picky and the price isn't horrible.
Sgt. of Marines, 5th Award Expert Rifle, 237/250
1st Award Expert Pistol, 382/400
D Co, 4th CEB, Engineers UP!! OEF 21JUN-20SEP2011