Okay, so technically I didn't buy this today. I bought it about a month ago, but I had it shipped to friends of mine in Buffalo and only just got my hands on it last night. It's a bulk lot of about 10 lbs of LEGO (or rather, 7 lbs of LEGO and 3 lbs of junk) that I got for $43 from shopgoodwill.com. I don't usually go in for bulk lots, but I recognized a bunch of parts for 7785 Arkham Asylum and 7625 River Chase so I took a chance on it.
I just finished sorting it and I'm only missing 19 pieces for 7785 and all the minifigs are there, even Nightwing. Batman is missing his cape, but that isn't a big deal. 7625 is only missing Indy's whip and the crocodile, and I also ended up with a fully complete 3830 Bikini Bottom Express. There's some Atlantis, Rock Raiders and Res-Q stuff as well, but nothing worth wasting any time on. Weirdly, I also found the dark green door frame that only appears in 4762 Rescue From The Merpeople, but didn't find anything else at all from that set. The wall by itself is on Bricklink for $20-30 though, so that's something (one seller has it listed for $100, but I'm going to disregard that). All in all I'd say it was a pretty good gamble