yeah the website is playing up ATM.
check out RPW.com as these guys supply go fast parts for Hyundai too.
your best bet for the rear spoiler is to get the Hyundai one, it looks the best of all that i have seen.
mags are a no brainer, places like tempe tyres do great packages. i recently picked up some 17x7's for my other half getz for $1000 posted including Kuhmo rubber.
if you are getting a K&N just get a replacement panel filter, not a pod. the panel filters work better anyway by not drawing hot air into your motor.
there is heaps of thigns you can do, altezza or clear tails, incar DVD players, lowered suspension, short shifters, turbo etc. depends on how far you want to go !!
pics here of my other half's car are here
http://www.hyperaustralia.com/forums/viewt...php?f=18&t=2480(IMG:
http://i149.photobucket.com/albums/s43/fifigetz/IMGP0205.jpg)
(IMG:
http://i149.photobucket.com/albums/s43/fifigetz/IMGP0281.jpg)
(IMG:
http://i149.photobucket.com/albums/s43/fifigetz/IMGP0284.jpg)