If you are wanting to go to the States to do your CPL then I would recommend it. For several reasons but these might not suit you. Firstly it can be done very quickly, I finished mine in 8 days although I did have an IR. I believe the full 25 hour course can be done in 2 1/2 weeks as this is what a friend of mine did and that was with the a/c going tech for a couple of days and a couple of days bad weather and I also think he partialled the first test. So if its time then go.
Secondly the cost I am sure I saved myself about £1000 with everything taken into account. It cost me a couple of grand for the flying and then the flight and accommodation another £1000.
On the down side the instruction in my school was not that good, the reason was that there was not a lot of knowledge of the JAA requirements so it was almost down to me to find out what was in the test. On one exercise I had to just blagg it and pretend I had done it. So if you do go to Florida pick a school such as European Flight Training I think it is called down in Fort Pierce who I think specialise in CPL.
As for the IR I would do it in the UK. I did mine at WAC. Excellent!