How can I run Windows on Ubuntu without vt-x?
I'm not sure if this is still true of the current version of VMware Player, but version 4.0 doesn't require vt-x, unless you are running a 64bit guest OS.
Sources: http://www.vmware.com/pdf/vmware_player40.pdf
You can download VMware Player here: https://my.vmware.com/web/vmware/free#desktop_end_user_computing/vmware_player/6_0
To install vmware player type in terminal: sudo cd /locationyousavedbundle/nameoffile.bundle