[corford]

>If someone knows where I could get a better deal on funding, equity and terms. I'd love to know!

Not sure what equity they typically take but two other options are http://www.forwardpartners.com/ and http://www.ec1capital.com/

Edit: there's also http://seedcamp.com/ (€75K for 7%)

Edit 2: if you have some UK based Angels in your network you're thinking of approaching for investment, SEIS might help get them involved (which you'd lose if you incorporated in the US).