Take a look at these from ADVmonster
. Especially the new ones he just put on the web site; the M61, M62 and the M64. They have a night shot of their beam pattern - not bad and the price is right for the lumens.
Here is a picture of the M62 1800 lumens for $70
The M64 at 3600 lumens for $110.
The night beam photos are in the 'Detailed description' tab.
I'm going to either get one of these or a back rest - yea getting older...