How many users can one Xserve support?

I posted this question over in Apple's user forums and got zero response, so I'm re-posting here hoping that someone will. [url]http://discussions.apple.com/thread.jspa?threadID=1495353&tstart=0[/url] I have one Xserve (10.5.2, 2x3GHz, 5GB RAM, 1.34TB RAID 5) that I want to support the following services for my medium-sized business: DNS, DHCP AFP, NFS, SMB Open Directory Print Software Update I also want to have mobile sync'd network home folders, but only for ~/Documents and iCals and Address Books (I don't want everyone's MP3s or family photos). I occasionally will use NetBoot/NetInstall, but only 1-2 users at once. I am getting ready to migrate my company to OpenDirectory and 10.5.2 for all users and was hoping someone here might be able to tell me how many users I can reasonably support with one Xserve. Also, is it a bad idea to have everyone using "mobile" accounts? It seems like it would be less strain on the server to have the occasional sync from users than everyone reading & writing all the time. Thanks.