Most of the offers on
eBay are around £150-60, and then about an extra £6-12 for postage, and up to a ridiculous £59 or so for import charges. That's potentially over £200, which is a bit much, considering as you say in the UK one could expect to pay around £150 ish for it, and then just a little extra for delivery.
I'm prepared to wait, and hopefully MS will announce UK availability soon, maybe even tomorrow. If they're gonna be bringing out a whole new wave of Surface products, at least make the accessories for Wave 2 available in Europe and other places as well, it's just common sense to wrap it up like that.
If worst comes to worst and it doesn't become available over here, I do think I will have to shell out of my university loan (I'm just starting uni this September and could really use the DS to fill a hole in how I work for my course), but it'd be a real pain.