In reply to Shane jones:
Any UIAA rated gear will be up to the job, regardless of its price and any gear bought from a reputable shop will be UIAA rated.
More cash will get you features such as lighter weight krabs, wider gate opening, stronger gate open strength, fancy colours etc. but if you want the maximum no. of krabs for the minimum cash to build up your rack then buy the cheapest you can find, even budget gear is pretty good these days.
One point which you may not know is to keep the rope end of a quickdraw (usually a bent gate for ease of clipping) separate from the gear end (usually a straight gate). Krabs clipped into wires, pegs and bolts can get nicks in them which can damage your rope's sheath. So always clip the rope into the same end and some means of knowing which end that is is important.