Welcome JJ
Assuming all else equal (mileage, condition & warranty) it depends upon your personal preference.
I like the luxury package. It has a lot of great features & you can pick up a set of springs, sways, & a strut tower brace (main suspension differences between the two models) for a reasonable price right here on the forum (if you want a stiffer suspension, that is). Those wheels are also easy to come across; the only thing that is rare on the Sport model is the Sport Grille; which, again, is personal preference.
I'd personally go with the '06. Good luck & either way, post pictures of your purchase when you get her.
PS-
congrats on becoming a Supporting Member; good start
