[quote user="Steven Warren"] I'm trying to create a single project in CCS that allows me to build separate binaries - with the ultimate goal of creating a single flash image that can then be converted into an MSPgangimage file.[/quote]
A single project in CCS cannot build multiple binaries, however you might want to look into an option that is available with our hex conversion tool that can be used to combine one or more executable files. Please take a look at section 12.6 "The Load Image format" in the MSP430 Assembly Language Tools Users Guide.
There is also a wiki page with some more details about it and although the page mentions that "Support for this capability has been added to the the hex converter utilities in the TMS470 Code Generation Tools 4.6.0 and C6000 Code Generation Tools 7.0.0", it appears the support is there for MSP430 as well.
http://processors.wiki.ti.com/index.php/Combining_executable_files