Tinsparrow,
Are you looking at doing a fully integrated course or modular. The first is between £55k and £75k and the second about £35k.
The only reason I ask is that without a PPL you can only do the integrated route.
The modular route requires that yougain the licences and qualifications one step at a time.
First step is a PPL, without which you cannot start studying for your ATPLs.
You cannot do your CPL until you have your PPL, Night rating ATPLs and 150 hours (including 100 solo).
Once you have this the next hurdle is your IR (normally including your multi engine rating) followed by an MCC course.
The point here is that you must have the PPL to go the modular route. You do not need it if you are going for fully integrated, but that costs huge bucks.
I would recommend that you do your PPL in the UK. Chances are your CPL and IR will be in the UK and there are quite a few places in the UK that are fairly reasonable in terms of cost - shop around and don't pay up front. You will save money going to the US, but not huge amounts. Have you thought of it the other way round?
PPL is 45 hours and about £4500 in the UK, but prior to CPL you need to do at least another 90 hours solo. You get more hours for your money in the states and their is more to go and see. You could do a UK PPL to get the best training you can and then go to the states for a holiday and hours build mega cheaply.
Obs cop