Developing for TI's CC430F5137 MCU
I'm seeing Spy Bi-Wire next to JTAG on the datasheet. This 2-wire (plus power and ground) programming/debugging interface means you don't even need a JTAG programmer : the low cost Launchpad  or EZ340 boards or EZ-430 RF2500 can program the processor, for $5 or $10.

Not all MSP430 CPUs have Spy-Bi-Wire, but according to the datasheet you are lucky; this one does.

I use MSP-gcc (actually MSP430-Ada as an alternative to c) for program development, and mspdebug with either of the above programmers.