I'd say it takes ~30 seconds to "boot," yes it will remember settings and yes, any computer with iTunes on the network will be able to use airtunes to airport expresses connected to said airport extreme...and one computer can connect to multiple expresses (ie multi-room audio) :)
More info would be good (like what type of game you want to play or specific titles). If you're looking to play some sort "modern" of first person shooter, I wouldn't bother with the macbook.
system prefs-> users-> (select user) login items-> hit the plus button-> select the volume you want to mount at login.
I'm pretty sure the volume has to be mounted when you do this...
Which version of the firmware are you running? I'd suggest restoring it (if possible), unlocking it and adding nothing else. See if that makes a difference, then add apps one at a time to see which one is causing stability issues.
a few points,
- registry vs. plists- it's incredibly easy to into the user or system library and find the plist(s) for a specific app and dump it in the trash. Hell, you can even use spotlight now to find them. Compare that process with cleaning up or editing the registry...
- lack of...
helpful advice: it might be that because you have the same server setup as a POP account, entourage won't let you set it up as an IMAP account. What kind of error or message is entourage giving you?
honest advice: why are you using entourage in the first place? IMO, it's a huge pile of shit...