In reply to MunkeeBen: I would wait a litle bit and get the new BD X4's. If you cannt wai then get either Fixe Aliens or Totem Basic cams (Totem Aliens).
I have climbed with almost all cams and find that Metolius Mastercams camming angle is to small so they get stuck alot. The sling is too short and they dont like salty air.
WC Zeros and great but again camming angle is small (bigger range than Mastercams). Great in horizontals until you fall on them and they kink.
BD C3's (which I have along with CCH Aliens) are great for 2 reasons. 1 the head is tiny and 2 they are very durable.
If I were your I would save up (cause BD X4 will be pricy) and get BD X4's. There is a good vid online of them.