My first kit was from Asetek that used a Hydor L30. It was OK as a starter kit and I was about to update the pump to a L35 when the CSP-Mag came out. I bought 1 of the Mags and have been in love with DC pumps ever since. To me, DC pumps just seem to all around better, less wiring hassles, more pressure (which is more important than total flow rate), and smaller.

Another thing to remember is that those Eheim #'s are for an open loop with no restriction and AC pumps don't deal with restrictions too well.

My advice would be to fleabay the relay card and put the money towards either of the Laing pumps.