<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by B Watson:
TIme to start a BA account. I have been taking them across the Atlantic anyway since I prefer them to AA.
</font>
You may want to look into a QF account- that way you can credit AA and BA flights to the same program.
Then again, as a paying Int'l premium class passenger, you're the kind of passenger that BA is looking for with its tier point system. Now that I think about it, a lot of the suggestions for the QF program center around being able to earn points on almost any fare in either program. Still, it might be worth looking into.