http://www.semsons.com/bluetgpsrec.html

Guys can some one suggest me a good one in above link? and which 'mount' will be best suited for 770? (I am getting a free mount from above site but i donno which one to select)

I think M-1000 is good among those,... any comments?

Any comments about the following product ?
http://www.geeks.com/details.asp?inv...T-BT-5&cpc=SCH