the best bang for the buck IMO is the axle shafts that let you have a weekend that you dont have to take your front end apart...
here is some good reading on ally dana 44 shafts and u-joints and their warrantes that I found just a few seconds ago...
http://www.pirate4x4.com/forum/showthread.php?t=446466
as far as nothing to search for...
id search by usernames of people running d44's in their front (yes, i do have one):
Captain Ron
Jes
CRASH
Cracker (used to)
Dave Taylor
SeanR
Paul S
Goatman
FarmerMatt (used to in the CAT, still in the JD)
LessLimited
to name a few...
I told you to search, 'cuse the info is out there...
as Phil said - I run Yukon shafts with Spicer joints, and while i havent had a failure, and they were only 500 shipped, I wish i was running Alloy USA and Longfield joints, because I think they are stronger and their waranty is better, and they gave me a hat.
I know that i've posted about my yukons on here before...
Also - the difference in shafts between the d30 and d44 is very little other than the 30 splines at the inner - so a company that is highly regarded for d30 shafts, is generally also looked highly uppon for d44 shafts (incase you want to search for opinions of shaft makers)
I think the best thing for you to do would be to pick up the phone and call your favorite vendor, and ask them what they recomend, and what they have in stock, and what they charge, and what their warantee is... and then buy from them - and support a vendor that has been good to you in the past...