My old commuter bike is a modified '87 Peugeot road bike. It has no rack-mount eyelets, only a pair of fender eyelets at the dropout. I have a Pletscher rack on this bike; it clamps to the seat stays, no braze-ons needed.

These simple racks cost about $20 new. I use two grocery pannier-baskets on mine and fill them to capacity. The Pletscher rack supports everything I can cram into them -- milk, juice, canned goods. The clamp on the top is handy too. The only drawback is that it has no hook at the bottom of the side supports -- many panniers need to hook on to something at the bottom. But your LBS should be able to add a hook where the rack bolts to the dropout.