Which Groupset?

I'd say everything got pushed two steps down with the introduction of athena and SR. To be fair to campag, it gives more budget options. So I'd look to go with Athena.

You could fix things up for what Dan quotes. A new chain, cassette, and cables. Is always nice. But if you get a groupset you can upgrade to 11 speed, and enjoy days of indexing adjustments.

http://www.cyclingbargains.com/product_info.php/campagnolo-athena-11speed-groupset-p-758?currency=GBP&stdSID=c8e0a8546d9a08fe869b4b8937d75b12

That site also has cheap parts.

Stripped the cranks/bottom bracket tonight and it's the left crank bearings that have gone. Annoyingly new bearings+bearing puller is pretty much the same price as a new ultra-torque Veloce chainset from Cycling Bargains. New chainset it is !