Summary: I was very happy with my Portege R705-P35. It's light, fast, and fairly inexpensive. I erased mine and installed Windows 7 Professional from scratch. Also installed 8GB of RAM. I even used it as a VMware ESXi host temporarily running our Microsoft Exchange server for three days and no one noticed! From the start there were things I did not like but could live with given the excellent weight and 5-hour battery life.
Summary: This computer is everything you could ask for in a laptop: Fast, extremely light weight, plenty of RAM, large HDD, relatively small size (13.3). I have been very happy with overall performance. However, two issues are worth noting on the negative side: Fan noise and durability. The fan noise has been noted on many sites. Some reviewers are not bothered by it, some are. I am one of the people that is bothered by it.