My laptop is similar in specs, and I've encountered no problems.  As for the runtimes...if the runtime is in the poser install directory, and your working with poser 5,6 or 7 the you can zip up the entire program and move it over to your laptop.  Poser 8 and and up needs to be re- installed.  At least that's the way it worked for me, but I'm no expert.