Mick, by far the easiest and most portable set ups are going to be a combination of 2 or more flash heads that will all marry to the camera and other flashes of your choice.
There are plenty of inexpensive stands, umbrellas and softboxes available to suit that allow for easy portability and creative use of "fake"
light outdoors as well as a semi studio setup indoors.
Other than that you start getting into the more permanent studio
light similar to the ones linked in your post above. Studio gear becomes a bottomless pit as far as dollars go and the ones that you linked to are only the start.
I don't know much about the Glanz brand but they look to be the typical low powered Chinese produced products that are literally everywhere on the net.
Have a look at the kit listed on the front page of
Vanbar, I had a look at the V-Tec products a few weeks ago in Melb. and they looked reasonably well made.
A couple of other retailers that carry semi to fully professional gear are
Studio works and
Dragon Imaging.