What's the most cheapest way to flash programs onto a DSP chip?

I'm thinking of using the C5000 series, or possibly some other low power chip.

Would taking something like the eZDSP USB tool, removing the soldered chip and putting a socket in it's place be a good idea? Thanks!

The C5000 core chips I've seen use BGA packages. Do they even have a pinned variant ?

They all have an on-chip boot rom. If you hold MP/MC h low as you come out of reset, you can invoke multiple programming options.

As always, read the datasheet ! And the app notes.