For the next (at time of this posting) 13 hours Bundle Stars is having a bundle sale for Game Making resources! You can get a lot of good resources and programs on the cheap and practically free this way, so its a good place to grab some stuff if you have a few dollars to spare. Its not quite as cheap as the Humble Bundle offer they do once or twice a year, but $2.99-$14.99 is very cheap for all the stuff you're getting!
There is the link. You need a Steam account to load in your Keys to redeem your stuff, but a Steam account is free if you don't already have one. Plus, if you already own some of the things on the list, you can give the Keys away instead. I think I might do that for the ones I already own in a little while, myself. Anyway, I just hope this either helps your Jam or gives you some good tools for a future one! Happy Jamming! c: