I'm also wanting to know real world experiences with cams and laptops.
I'm looking at the GSTAR EX CLR . The live view stacking feature intrests me and might interest you too csb...
It has frame accumulation, which in effect - so far as I can understand- stacks images over a given short period of time continuously and gives a near 'live' view of the sky giving a more detailed and more colorful view than what you might get looking through an eyepiece alone.
This is a link to the details about the gstar ex clr
http://www.myastroshop.com.au/guides...star-exclr.htm
hope this helps
Bartman