spicyquesadilla,
If you have LR (at least 29 lbs) and a deep sand bed(4 - 6") in your tank, these 2 items will be your biofilter. As for skimmers, I would suggest the aqua C remora or the cpr bak pak for a 29 gal. tank. Let us know if you plan on running a sump with this tank since that will increase your skimmer choices.
Brian