I would recommend finding a latex free cuff. Some people have a latex allergy. Also, get one that comes with different sizes. Anne Frye was at the last Eugene conf. I attended (3 years ago?) and was showing us the importance of cuff size, placement, etc. Get an adult medium, large and x-large. You're serving women of all sizes and shapes. Getting a doppler is good but I would start out listening for tones with your fetoscope for good practice. Also, along with all of your equipment, start an information library. Print articles on sources of iron, protien, etc, general nutrition, GBS, find sources for doulas, massage therapists, chiropractors, etc.
Just my .02