Dinotte can't be beat. They are super-bright and mount well.

I run a 600L headlight and a 400 taillight (I just got the taillight -- before that I was running their 140 taillight).

They have a special now where you get 25% off via a gift certificate deal. With that, you wouldn't be much over your $300 limit if you got the 600/140 combo.... though I'd go ahead and pony up and get the 600/400 combo (not that the 140 isn't bright enough.. I just like the most light I can get).