I'm sure glad I got my chase figures in a complete set off ebay...  that price for the AT-ST driver is insane... 

Yeah, me too.  I got the full set as soon as the series was released, from a private contact in HongKong, not ebay.  No cardboard display, just one of each of the figures, including chases.  I paid $380 total, including shipping.  This was well before the prices for these chases skyrocketed.  I was quite happy, but my seller was probably a little regretful. 

Who are the chases for the Potter 'bricks? Malfoy and Sirius?

Yep.  (Already stated at the top of page 82..., with a pic... )

Harry Potter kubs are even better in person:


Iron man 2 (with a couple of easy headswap customs):


Grand Theft Auto: San Andreas set (still can't believe I found these):


Various others, new and old:
       

   

I opened mine.

Built a few wooden display frames for the collection over the holidays. Here's the basic wooden frame, which can be hung on the wall separately, or it can be stood on the separate floor stand / base. The frames are also stackable, so they can go about 3 high on top of the base, forming a bookcase of sorts. The frames have a white masonite backer board, which holds the cases in, the white color makes the figures a lot more visible, and it's also removable, so the 6x20 cases array can be removed, updated, and replaced inside the frame. With just one frame on the base as shown, it sort of looks like a mini-big screen tv , though that wasn't the intention.

Still need to sand these down, but I can't decide if I'm going to stain them or paint them black. So far I have 12 frames and 4 base units, comprising three full "bookcase" structures. Unfortunately, these won't even house the entire collection, so I'll be making a few more.

Hong Kong has the DC twopacks also. 

The Watchmen series is another example of this.  In Asia, they were individually boxed, while the US had the 3-packs.

That ship looks pretty small.  Still neat, though.

Got my set of 8 today.  I really like this set, but I had a lot of trouble with the body parts:
-5 of them had too shallow of a right foot hole to completely cover the peg in the acrylic cases (Luke, Rebel, and Chewie were ok).  I had to use a 7/64" drill bit to deepen the hole so they would stand flat on the base.  
-AT-ST driver, R-3PO, and Leia had floppy bodies / leg articulation.  
-Chewie's right hand was frozen/glued in place and wouldn't turn.

I liked the trays the chase figures came in, to protect their antennas (helmet, backpack).

AT-ST is okay, but I really wish it was a Taun-taun.