I'm currently doing the above.
OAT CBT pack + PPL Confuser.
I did some light reading of Phill Crouchers ATPL book to see what I was in for in the long run and dare I say it 'quite enjoyed it' and no doubt I'll enjoy it a little more with 50+hrs logged and a PPL.
I've not sat any exams yet as I'm not fully committed to going through with a JAA PPL and thinking of taking the FAA route.
Good luck