I swung by Target on the way into work and picked up a coin album on clearance for $6.98. The Tantive IV sets were gone but I plan to go huntin' tomorrow!!
I have a couple of the Ultimate Solider 1:18 figures, Germans mostly. They do a good job with them. Have'nt tried customizing them yet.
21st Century Toys/Ultimate Soldier had a line of 1:6 scale figures until about five or so years ago. The bottom just dropped out. They still produce 1:6 scale weapons sets, which some Wal-Marts carry. They released an RPG set just recently and it's pretty cool!
Some of the weapons can be modified for SW 12" figures.