track/road set up

[adam b]

Don't buy cheap crap coilovers, solid mount everything or drop it so low you need to chop the bump stops to get rear travel.

Tyres and brake pads first
Rear beam needs to be in good nick, including the mounts (good oe rubber I think is better, others disagree)
Figure out your budget and buy the best stuff you can, especially dampers. It's all about balance and good damping