If it fits I'd keep it for fitness riding/charity riding or racing and pick up another bike for commuting. Your Univega is a terrific road riding and racing bike; however, it apparently lacks braze-ons for racks and unless you're the master of backpack packing your back is going to hate you if your commute is over 5 miles.

If you like the road bike/drop bar format then depending on your budget I would look at either a touring bike or cycle cross bike or even a Harris Cyclery San Jose8 which would make a natural commuter. Otherwise I would look along the cheap side of it and look at 700c hybrids along the lines of an entry-level Specialized Sirrus.