Looking on ebay, there's a few Wiis going for around £150 - less than UK retail price - NSTC units (both US and JP) that were obviously imported due to the lack of demand and are now being sold off in favour of local units... But then, I'm still not sure if I want to spend almost £200 just to play Smash Bros, even if when it comes out here I can sell the Wii again and recoup some of the cash spent. I'm trying to justify it, but I really don't think I can and god damn it I wish NOE would just announce a date. If they said Q4/Christmas, I'd know it was safe to import, but if I spent that amount then they turned around and said April or May I think I'd kill myself.
That said, all the major UK retailers are listing placeholder dates of late april/early may. But NOE's official Q1/Q2 release lists say nothing about Smash; but they've been known to 'stealth release' games before, or just suddenly slip them into the lists a month before it comes out.