Two good places to start are www.randysringandpinion.com
As far as gear makes, most prefer orignal Dana/Spicer gears which are more on the expensive side. Beyond that, Precision (this is what DTD carrys) makes a pretty good/popular gear.
Yea, i've heard of the tom woods kit. No first hand experience but i hear lots of good things about them... should be a solid kit. Also, check www.jbconversions.com
for another SYE.
1995.5 Isuzu Rodeo - SAS'd and SOA'd, sitting on 36x12.50 TSLs, D44 front, 14bff rear, locked by OX and Detriot, suspensions by Jeep and Chevy, high steer conversion, 5.13 gearing and Teralow in the case.