Hey all. Looks like this thread got resurrected from the dead.
pompeyjohn - Keeping the lily pipes were very much an issue. They were a pain to clean. After 6 months or so, I got a little rough with the cleaning and ended up breaking the intake pipe. I'm now using an AC20+hydor slim skimmer and an mp10es on the nano.
malibukay - If you're going with lily pipes, I would recommend getting an extra set to do a quick swap when cleaning. Good luck!