Welcome to the boards. To make a long answer sorta short:
I'm assuming you have one of the cheapie fridges ($200 or so). Use that for short term (no longer than a year) storage. It'll dry out your corks. Some people put a little dish of water in there, but I dont think it'd help much. As far as temp: 45-50 won't hurt them, but will make them age more slowly. 50-60 is a good range. If you want to collect or store long term, think bigger. I have my little 28 bottle Avanti at home, and keep the long termers in offsite storage at a LWS (local wine store). Costs me $15/month for pristine, secure storage, and I'm not tempted to drink them early if they're not at home.
Some folks get really anal about serving temps, but normal room temp is fine with me for reds, especially with heavier bodied wines like Cabernet and Syrah.
And, about that '79 Brunello. Drink that bad boy!