VO had a dynohub in their specials for 35$. having an LBS build that into a decent rim shouldn't cost more than a 100$. There are some neat DIY projects out there that use LED that seem to light up the road well. I found a generic light, like this one (link is to wholesaler, not actually for sale )in Toronto for 20$ at some small shop, it feels a bit cheap but it's fairly bright though it does flicker a bit. They also had a rear light that didn't come with anything but the lamp unit itself, no hardware or wires/connectors. I suspect the bottle dynamo kits that include lights could be hacked with LED if one was so inclined, but unfortunately dynamo lighting is still a niche market at best so there isn't a lot of choice.