honestly, I would pick up the 9mm, witha 30 round mag. throw a laser/light on it and use it for home defense.
keltek is nicer but i don't know if it is worth the wait or extra price. If you are are looking for a AR style 223 round.
Look at keltek's plr 16 very nice rifle
and su-16
http://www.gunblast.com/KelTec-SU16.htm
http://www.gunblast.com/Kel-Tec_PLR-16.htm
http://www.gunblast.com/Kel-Tec_Sub2000.htm
http://www.gunblast.com/HiPoint-9mmCarbine.htm