eBay

I found an item on ebay that I really would like to bid on, but the seller is in the UK so all the bidding is done in GBP. I am ok with that, ebay even lists the dollar conversion for me. My question is, how do I pay the seller? I was intending on using paypal, but will paypal do the conversion for me? Do I just pay the seller in dollars and let her do the conversion?

I am very confused.

Thanks!