Well, I've gotten several sets in the past few weeks, so it's time to stop lurking and start reviewing! Rapid-fire impressions! (no pics yet, sorry)
Jungle Duel (7624 - Indy, Crystal Skull)
Three minifigs for ten bucks? I'm sold already! Like the Motorcycle Chase set, this was a set I bought primarily for the minifigs (Indy, Shia LeBeouf, and Cate Blanchett), although there's several other good features. The tent can serve as an outpost of some sort, and the table is built in two pieces so it can be sliced in half. Also, a swiveling weapon rack is provided, along with numerous weapons and other assorted things for minifigs to hold: a broadsword, a gold katana, two daggers, two cutlasses, a frying pan, a drumstick, a banana... Yeah. Also, a few ants for whatever critter purposes you desire.
River Chase (7625 - Indy, Crystal Skull)
An amphibious jeep, a boat, a tree post with net trap, two soviet soldiers, Indy, and Marion (in slightly more conservative attire this time). Also, a modern looking pistol! Woo! Oh yeah, and a crocodile.
Dwarven Mine Defender (7040, Castle)
A dwarf and two trolls (one carrying a standard, very nice for a squad of trolls), along with a siege engine of sorts. A pair of Lego chains serve as a pull-chain to work the catapult, rather than whacking down on the other end. The saw blades on the front are supposed to be driven by the wheels, but the rubber band provided doesn't really cut it. I'd rather power the blades myself anyway.
Jetpack Pursuit (8631, Agents)
Chainsaw arm FTW. All else is secondary to this. Still, plenty of cool features, such as a hook on the back of the jetpack that snags the stolen gem away from the back of the snowmobile (which is built quite awesomely itself). The agent has a "serious" face and an "it's-never-too-dark-to-be-cool" face.
Swamp Raid (8632, Agents)
"Break Jaw", as the box calls him, is awesomely evil-looking. An "exploding" bridge provides some nifty interactivity, and not one, but TWO radio-controlled crocodiles. The motorcycle is built extremely well, and looks to be a unique design (at least, I certainly haven't seen it before). There's also a little getaway boat for the villain. The base looks like it has the potential for some very nice synergy with the River Chase set's tree post.
Out of all these, I have to say that I'm loving the Agents sets the most right now. They're totally BrikWarsian, from the vehicles to the firepower. My biggest gripe is that they use little stick-looking things for guns. Why couldn't they have used the same kind of pistol that was in the River Chase set, I wonder? It looks sufficiently "secret agenty" enough to me. In any case, if you're looking to run a modern or mixed setting for your next BW campaign, grab some of the Agents sets. From what I've seen of the new Castle sets, those are excellent for a medieval setting as well. Very "steampunk fantasy" inspired, I'd say, especially with the "held together with duct tape and spit" look of the trolls' tools of warfare, not to mention the dwarves' obvious love of overkill on their own weaponry. I mean, come on, a catapult AND thresher? That's totally wrong in so many awesome ways.