Some of my pet needles are Susan Bates circulars that I got off Ebay in a big ole grab bag of circulars. In particular, those satiny Susan Bates with the white cable. I love 'em.
Yes, I admit...I have the entire lineup of other circs obsessively collected over years...ranging from KnitPicks Options right on up to Signature Needle circs....I won't bother you with the entire list.
But if you want good circs at a really inexpensive price point...give Ebay a try! I love those old vintage circs!