I did some
research on this topic last year before the season.
Based on
reviews, I went with the Weber Q1200 and it has been awesome.
We
grill out 6 of 7 nights and it is the best by far.
There is a thread with mounts mentioned that I bought and adapted to the Weber. I will see if I can find it or the mounts. It takes a little
work, but looks like it was made that way and easy to remove from the rail if you want to.
Edit:
I found the mounts. They are a Magma number:
Model:
MFG # T10-680