I have dies from many manufacturers, including Lee, Hornady, Lyman, RCBS, Pacific, Herters and a few others. IMHO, the best value, especially for pistol caliber dies, are the Lee 4 die sets. Internet prices are usually a bit lower, or equal to, other brand 3 die sets, and their quality is good. The FCD is superb, really helps in making high quality ammo. I have Hornady dies for 44 Split & Mag (love their bullet seating guide, BTW), but use a Lee FCD for crimping. It truly makes a difference, I have been so pleased with the results from the FCD that I bought them for all my pistol calibers, and for most of my rifle calibers as well.
Oh yes, you need to buy 44 Special dies, NOT 44 Magnum dies - the Special dies can be adjusted to load Magnums, but the Magnum dies cannot be adjusted to load the shorter Specials