So I have this Mac mini on my desk at NETbilling...
I use it for all of my daily work here. It only has 4g of ram and I am amazed by the performance. I have 2 monitors connected to it. A 32" Cinema display and a 25".
I just looked and have about 60 safari tabs running, excel, word, mail, trillion, photoshop, acrobat pro and other programs and the thing purrs like i just restarted it (even though I haven't in over a month).
I am really amazed with the performance of this little $399 compact desktop that's over 3 years old.
This coupled with a 10 year old G5 that my kids use, a 3 year old Macbook pro that I use at home, 3 iPads, a 5 year old iMac, and even a 13 year old Power PC G4 400 that runs a transactions server monitor in my office, and all have never had even one issue.
Apple's quality never fails me, especially how I see so many of our Dell's etc at the office regularly having issues and having to be replaced every couple of years.
Mitch