What lockpick sets to buy for beginners <- this thread may be of some assistance.
I own a couple of southord sets and I love them. (MPXS-20 & C2010) The slimlines are my favourite but out of the 50+ tools i've got I really only use a small hook and a half diamond. All I can say is it is worth the little extra money to make sure you get a set with all stainless steel handles, (the MPXS-08 is such a set and really is all you need to get going) they make the tools a lot more comfortable to use and they just feel like they have a lot more quality to them.