US Tax Adviser

UK citizen married to US citizen, living permanently in the UK. 

I need to find a (reasonably priced) US tax adviser to help with my wife's US tax return.

It shouldn't be particularly complicated, as she is a stay-at-home mom, but she does have US investments. 

Can anybody recommend a UK based tax adviser who can help us with this?  It's possible my wife could complete her tax return herself and we could just employ somebody to look over it, but google returns suprisingly little in the way of confidence-inspiring results.

Thanks in advance!

can't help, but would be curious in this answer myself, esp if you find someone in the cambridge area.  i'll be moving there to join my uk boyfriend in the summer and i'm already anticipating a somewhat complicated tax situation next year...