I have been buying film on ebay. Some of the bidding goes up to almost the price I would pay in the store. I have a set limit of how high I will go and I stick to it. I have been averaging about 1.25-1.50/roll(shipping included in the price).
I was just at www.webrx.com and they were having a sale for
Kodak Gold 35 mm Film 100 Speed, 24 Exp. $1.34 reg. $4.49 . I don't know what speed you use but I thought this was a pretty good deal. hth