haha,
The reefs in Gili mostly suck, very very dead.
and i have been offered mushrooms at 7am before a dive. I declined. As an aside though, it is rather worrying to see that hard drugs have made it to this little hippy island.
Renaud works for Bali Hai (website offline), there is also Werner Lau (very, very unflexible from what i have observed - 45minute follow the leader diving), Reef Scene, Mimpi and a couple of others.
Renaud is an old friend, so i am somewhat biased, let me know if you want contact details.
The only problem with diving the Menjangan / Pemuteran area is that you'd need a boat for most dives. PJ's is worth doing several dives on, although i hear that the fishermen are being a bit naughty there recently and heading into the area that's meant for diving.
Bobbits are usually at dusk/night. Drew had some good advice on a hotel near Secret Bay a while back, i can't remember the name though. If you're driving yourself around or have a private car you should be able to have a lot of fun in the NW. Find a beach and jump in.