Sample Rate Converter For Os X Panther?? Options

[TiguerSound]

Does anyone know of a good sample rate converter for OS X?
At times, I need to convert Audio files to a different speed. (I have a 15ips tape deck, and frequently transfer 3 3/4 & 7 1/2 ips tapes on it, so they come in sounding like chip monks.)

Currently, I use r8brain (http://www.voxengo.com/r8brain/) on my Windows XP machine but that involves converting the audio to .wav, transferring the files to the windows machine, converting them, transferring them back to my MAC, importing into my DAW. (DP 4.12)

The files are recorded at 44.1k 16 bit on my DAW. I move them to r8brain, resample to 176400 (for 3/3/4 ips tapes) with the sample rate set to 44.1k. Works like a charm.

I have not been able to find one for MAC that works like this. I did try Sample Manager, but was unsuccessful in getting the conversions to work properly. Couldn't seem to figure out how to get the resampled file to play at the right speed back in my DAW, like it does after the r8brain treament.
Any help is appreciated. MOTU tells me to buy a new interface that can handle 176400. Yeah right. This is so simple but I just can't find a good MAC equivalent to r8brain. Did I mention "free" would be good - like r8brain?
Thanks