Just saw The Flaming Lips announce this one-day festival, £41.25 for early bird tickets, which is pretty much the cost of a Flaming Lips ticket anyhow.
Some bands so far:
The Flaming Lips
The Go! Team
and some theatre and other such stuff.
Hopefully some more good bands will be announced also, but seems worth it at the moment/price now.
/end of rubbish-advert-sounding non-advert