deltamac. thanks a lot for the info. Would these caps be good enough?
http://cgi.ebay.com/12-Rubycon-MBZ-2200uF-6-3V-20x10mm-LOW-ESR-ship-fast_W0QQitemZ270265923649QQihZ017QQcategoryZ4662QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Also, some caps have white stuff at the bottom, they are not bulging...