If I were you I'd sell the mini and get a new one. I was in the same situation as you. I sold my mini on ebay for $350 - not bad to get >50% the value of a new one after 4 years. A new one is $600, and the 2011 model is supposed to have better sound, possibly lower jitter. I haven't done any comparisons yet. Anyhow, for $250 invested, you get the new OS, and a machine that is much easier to add RAM to (the 4yo ones are quite difficult). One downside, the newer ones don't come with optical drives - less elegant all-in-one enclosure if you do need an optical drive. But if your are networking with your other machine, you could rip CD's on that one - so you'd be covered in that respect. I say sell it while it has value!