You mean exterior lights right?
Start here --- >
http://www.carid.com/toyota-accessories/
Excellent site for exterior mods.
If it were me I would get the "chrome halo beam" projector headlights with an HID kit. Then I would look at some LED taillights. Unfortunately they don't have any for your model on CarID. Look on Ebay for those.
Next look into a chrome mesh grille. Be careful some of them look really tacky and some can make the car look really good.
Lastly get your windows darkly tinted. This will make your car look dramatically better.
Good Luck!