Thank you Eric, Chris, John, Tom & DiverPam for your comments and suggestions.
They definately point me in the right direction.
While I am sure I will 'graduate' to a desktop system at some point in the future finding a laptop that I can grow into and also use for work makes the most sense for my present situation. Having invested in a new camera, housing, light, strobes etc., an extended vacation and a few bits of new dive gear this year cost and the ability to use as a work computer is key for me. I simply can't justify a dedicated home system right now.
After reviewing last year's thread I will be shopping around with your suggestions in mind.
Thanks for all the input, This forum is a great help to us Newbies :-)