a few things you will need to decide on before moving forward:
1. Type of keg you want to go with for holding finished product
Pin Lock---cheaper, harder to come by and replacement parts will most likey come from online sources
Ball Lock---easier to come by, most local homebrew shops will carry parts
you can typically find these on CL or can buy online
2. Storage for kegs
you can do some searches in the DIY section of this forum to get ideas or you can just buy a kit that serves from a fridge (basic kit). Heres a link
If you want to get up and running quick as possible i would suggest that you do some looking on craigslist for corny kegs, it really doesnt matter the type, and then buy a basic kit to match (you can always modify later if you want to build a kegerator or keezer). You may also be able to find a C02 bottle on CL (at least a 5#), which will cut the cost of the basic kit online. Then all thats left is to get to brewing.