Where can I get resin casting supplies?

Okay, that's water-slide decals off the list *tick*. Now I need more help, guys.

I need liquid resin and silicone, but Alumilite only ships to the US and Canada.

And since I live in the UK, this is a major problem.

To the point: do any of you know where to get resin casting supplies? And if they ship to the UK, that'd be all fine and dandy.

In other words, that'd be great.

Thanks in advance,

- Chaotic Good