Sanyo MM-5600

Hey everyone! I'm about to purchase this phone but had some Q's regarding the 3 Mb's of internal memory. After reading other threads, it seems that if you want to use downloaded ringers, they must be stored on the 3 Mb of internal memory...NOT the SD card. I'm guessing that ringers can be stored on the card (or a PC) but would need to be swapped out & substituted w/ringers stored in the internal memory...is this true? If so, approx. how many ringers can be stored on the internal memory? Another guess of mine is that this would only apply to "audio" ringers, not for video ringers, whether recorded w/the phone or downloaded from Sprint, etc (being that 3 Mb isn't large enough to house video ringers)? Am I correct in these assumptions? Thank yo...
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