I switched to mobaxterm [http://mobaxterm.mobatek.net] a few weeks ago. I am so happy with the program. It has some cool bells and whistles but it has built in X server. So it does X Forwarding out of the box.
Its built-in SSH server is great for moving files to and from my workstation quickly when I need it.
Best One Liner about commercial Open Source software : The only kind of profit strategy that is incompatible with Open Source is monopoly-based sales, also known as "royalties". [] http://opensource.org/faq#profit