Use the LAME encoder, and tweak the encoding settings to get the best/optimal result with using your particular audio. Use a quality setting of 0 (zero), it'll take longer to encode but it's a much better algorithm. The end file size wont be any different.
I use the LAME codec but with the RazorLame GUI front-end (makes it much easier to tweak).
Lame:
http://www.free-codecs.com/Lame_Encoder_download.htm
RazorLame:
http://www.dors.de/razorlame/download.php
You'll need to point RazorLame to the "LAME.exe" file once everything's installed (you can do this by going to the options in RazorLame and browsing for the Lame.exe file).
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PS > And another thing! Will the Ti|3 have user customisable/importable wavetables?
A ribbon-controller or XY-Pad might be nice, too, please! Thanks!