Midi Guitar Support?, Is there a Roland alternative? Options

[iShawn]

I was interested in using some MIDI sounds for recordings with plugins and such, but was wondering on how to use guitar for it instead of a keyboard. I know Roland makes something that would work, but I wouldn't need it for a live situation with effects; I want to harness the virtual MIDI instruments in the recording software.
I have a Digitech Whammy that I know has MIDI on it but I am not sure if it will send the sort of signal that I want. Are there any other more affordable just-to-record with solutions you know of? I mean, if I don't like doing it than it's only a few dollars for a cord compared to Roland's $1000 or so investment.
As always,
Thanks!
(And no, I really don't feel like buying a dedicated guitar to do this - which is why I was first intrigued about Roland's mountable pickup - large price though )