Not really, these engines don't respond hugely well to much tuning short of a supercharger kit (£7K, and yes I've already looked!). With breathing mods and a remap you might get an extra 40bhp, but that's about your lot.
I think I'll do exhaust for some noise, springs for some stiffness, Dension for some iPod, and then maybe ARBs as well. It has the comfort seats in, so I may swap them for the sport seats (adds lumbar control) if I can find a set at the right price. Really the modding budget is going on the MR2 though, I want to try and keep this vaguely normal.
UUuuummm, didn't spot anything here about clutch, flywheel and brakes.