Next up, since you state you are not an automatic transmission fan - look into the paddle shifter kit.
After that, some basic upgrades are ( in no particular order ) :
Single / Dual Cold Air Induction ( CAI )
74MM throttle body
After market head unit that has USB and plays MP3's ( maybe even blue tooth fer yer cell )
Vinyl covers for the headlights/fog lights
HID low beams, maybe ( if u are into HID's )
CHECK THE RCM FOR THE MYSTERY NO-START
get a spare crankshaft and camshaft position sensor ( and tools to install them ).
new battery ( if it's > 4 yrs old )