It failed the MOT- nothing too major, a rear ARB link had snapped, which is probably what was causing my interesting steering and a CV boot had split.
What I hadn't bargained on was the garage blokey coming back from the MOT centre saying "Sounds like your big end's gone on number 3 mate" This was most likely caused, as Savage said, by the overheating from the water pump not working.
I'm now going to be the proud owner of an STI ej20 short block, from one of his old rally cars that ended up split in half by a tree, to pop my heads on to over the next few weeks. Which, as I'm sure you know, has forged pistons and is capable of holding up to 350bhp (Much more than my car will ever make) so I'll have a nice bit of cushioning and hopefully won't destroy another bearing.
Bit of a pain, but onwards and upwards, as they say!
Another kick in the goolies and a lot more money thrown at it, but I'm secretly quite excited by it all.