red dot the whole way
trijicon makes one that doesn't need a battery for around 400 bucks last I checked and there is another one out there that doesn't need batts made by metroplite (or something like that) don't remember the name
I second the h1/t1. I love mine. I mainly bought it for home defense. Leave it on for 5 years at a time. Change the battery and leave it for another 5 years. Great for close range but also great out to a little distance. A couple weeks ago I took it out to a 300 yard range and was able to hit a 12" steel plate pretty consistently.