Best job search websites/companies?

[ewings999]

Might be looking to head back to the UK, following 5 years here in OZ,

I've a fair few contacts in the Bristol area where I would be looking to be based, and should be able to move back with the company I'm with now, but am interested in what other opportunities are around.

I'm a principal/associate mechanical designer so are there any specialists?

Cheers in advance,
Rich