An alternative to Starwars Click base minis are the also "Randomly packed" Star Wars Minis from Wizards of the Coast.

I think there's usually 7 figures per pack, and everything Kovax say's above about collecting click bases applies here as well.
I've been working on a starship diorama for some time, and picked up a couple boxes as well as some singles at a comic store to use in it.

You can look up the gallery at...

http://www.wizards.com under starwars.

Cheers!

PS. I am not now or ever have been an agent for WOTC, this is not an advert.

I can haz mold rubber?