You go to PayPal.com rather than .co.uk. You need to have 2 different e-mail addresses.
I have a few questions about this....
My paypal account was originally a USA one - as Paypal only just got started over here this year. I went on Paypal the other day interested in seeing if I could transfer money that way. My UK address is a verified address - as is my Debit Visa that I first set it up with. (both address and Debit Visa are UK).
Anyway - I had no trouble adding my USA bank account. So (I haven't tried it yet - still waiting for the Direct Debit to be set up at Nationwide), I think that I don't need two email addresses. I think you can fund your Paypal account with your Debit Visa and then just transfer it to your US bank account....Does that make sense?
Anyway - when I get it all set up - I will try it and let everyone know...this way would be much easier than trying to have two accounts with two emails....
Watch this space...