Laptop advice needed

Hi all,
 
   I was looking through other forums this morning and saw an orphaned thread where a guy was asking advice about what laptop will work to use on the road. I do not use SONAR with laptops, so cannot offer any advice, but know that some of you folks use laptops regularly. Since it was his first post and 3 days old I wanted to give it a bit more attention.
 
   Best regards,
   Michael