I just picked up the Indie Gala October bundle recently.
Some Shmup goodness to be had there. Ether Vapor Remaster, Satazius, and RefleX.
I am some how hoping the last two games yet to be revealed happens to be Alltynex 2nd or even the 2nd or 3rd Exceed game.
On the subject of doujin shmups.
Anyone ever play Blue Wish Resurrection or Crimzon Clover?
Blue Wish Resurrection is awesome Cave inspired Shmup (It's Freeware too)
Crimzon Clover was released during the 79th Comiket and is just an amazing game that reminds me a lot like DDP mixed with GigaWing. It was recently released for Arcades, but if you can track down the PC release I highly recommend it. Definitely worth the purchase.
Edit: If anyone wants to check out Blue Wish Resurrection, here is the developers website -
http://www004.upp.so-net.ne.jp/x_xgameroom/Works/works.html
Eden's Aegis is also nice shoot'em up if you want to check out. Just letting you know that these aren't demos. The dev released these as games as full freeware releases. Enjoy!