Got my mini server yesterday! Spent a lot of time re-running cabling around as I brought a 2nd monitor onto the desk.
First impressions:
1) replacing the HD seems pretty straightforward. I pulled the stock 750GB to clone it pre-initial-boot. The tough part is getting it back in- it would be a lot easier to do if you disassemble further and slide the logic board out a little. I had to reach in with a tool to help support the drive in order to get it lined back up with the rubber grommets. I will have to replicate this process tomorrow when my SSD arrives.
2) I'm actually a little surprised (and a little dissapointed) at how audible it is. It's not the mini itself, rather the dual 7200rpm HDDs in it. It's definitely not loud, but clearly audible- I also might be a bit more sensitive to these things after enjoying a few years of blissfully silent computing with SSDs. Also could be a factor of where my mini is located w.r.t. sound reflections and whatnot (even though it is quite far from where I sit). I will see if it quiets down some with one HD replaced with SSD, but I am actually considering dropping to a 5400rpm drive instead of the 7200rpm, or putting my other 256GB SSD in it. The fan operation, however, is dead silent.
3) Lion blows. I mean seriously blows. My experience with it so far leaves me with the impression that it is very unpolished and buggy. Windows users used to joke about Macs being "fisher price computers with fisher price OS", and I would disagree with that statement. Until Lion- which definitely feels decidedly "fisher price" in several key areas over SL. Apple is supposed to be the company that obsesses over elegance and UI- yet there are so many user-unfriendly and inconsistent aspects about the UI that it's maddening. I can only hope that things improve with time but it's almost enough to make me want to keep the "real work" on my SL laptop... but this rant is not really fit for the mac mini forum
4) Maybe I am just missing the point, but the "server" application seems for me (a home user) to be a bit redundant. Seems like it's a more conveneient/centralized location from which I can adjust a variety of system settings, but not that useful. Fun to play with though- I will definitely need to learn more about what I can do with my new mini, and how I can actually leverage some of its "serving" features for myself.