Hey Rez89,
Very nice looking car you got there, I like the body kit :winky:
Painted calipers are a really good place to start, its a nice simple job but really effective.... i painted mine using a guide off here <clicky>
Heres a link to my post on painting the calipers... Linky
Its all down to personal preference, with mods...
Exhaust: I got a Blue Flame exhaust, its not too noisy wen the car is idling and bimbling about but makes one hell of a roar if you boot it...
Air intake: Either a high flow panel filter, K&N do good ones (cheaper option) or induction kit, the odd one does appear on this forum in the sale section.
ARBs: anti-roll bars are next on my list but are quite expensive at about £400 for a good pair...
You can get your alloys refurbished... before i bought mine the alloys were in a proper nasty state, but the garage got them refurbed before i bought it and they look cracking!... no scratches, scraps or corrosion.... just like brand new... mind you i'm not sure how much that will cost... might be worth looking into as you can change the colour of your alloys if you so wish when they do it...
Hope this helps, good luck and enjoy....
FiZiX