Sharing ILDA files is sort of a no-no in the industry, but we here at PL think of that as bull. I'm sure if you ask nicely people will share their frames , but don't expect high quality, professionally made frames. It will probably be made by someone on his spare time to try and help you as a member 8) .
As for the DAC and software, there's a combination out there that is very inexpensive. The software is free and it's called peoplescan. The dac is pretty inexpensive to build too, between 50 and 100$ I'd say. However, that solution does have some limitations, the software is not as powerful as other commercial softwares, and the dac works off the parallel port of your pc, which means it will produce hot spots as it waits for windows to send the data through the port (the port tends to freeze when the computer is in use, like opening a program, or even changing to another window/program). However, for the price, you can't go wrong :P
Remember the future?, That'd today, as you imagined it yesterday.