Actually, Quif, it's somewhat relevant, as that goes to the cost of licence issues. You don't need to hold the night rating, so you can save something there.
If you were in the UK the costs of each ATPL exam is £55 (14 exams). The CPL and IR tests are around the £600 mark plus aircraft hire. Licence issue is about £180 for the CPL/IR. In the US it may be different, as you have to cover the cost of having exams sat over there. Medical is an initial £420, then about £90 per annum to keep it current (you may need a renewal - must be valid for CPL skills test and for licence issue).
However these are costs each time. If you fail any then you have to pay again, so don't cut your money too finely.
You also have to think, are you flying to get a tan, or to get a job? I don't know specifically, but how do you think a UK airline will look at a candidate who has not flown in the UK since PPL, when he has a stack who completely trained here? Things are different.
The cost saving is also not that great - you can do the basics in the UK for around the £29,000 mark, even a little less. OK that looks like a £5,000 saving to you - but only if the dollar remains weak or you buy your dollars now. The latter will cost you up to £1200 in interest if you're borrowing the money in the UK! (N.B. don't pay it to the training provider up-front! Search for threads on the issue of paying up-front). Then you have costs for relocation to the States for perhaps a year, and any return visits. That can, in some circumstances, wipe out all the benefits.