I found a 3 socket Aldur's Rhythm during my game play last night, and it is a vast improvement over the weapon I was using.
I am running a Zeal Paladin, on closed Battle.net, at Nightmare difficulty Act 3, and I am hoping that it will help me up to Hell difficulty. Based on those threads from players using this weapon in Hell I feel like I've gotten a great weapon earlier than normal.
I read suggestions about adding 3 Shael runes to make the increased attack speed as high as possible, however, the calculator I found showed my number of attacks (Zeal) would increase from 4.16-4.46 for the 3 rune upgrade. Gaining 1 attack every 3 seconds doesn't seem like a huge damage gain.
Others suggest adding Amn runes or 3 Perfect Skulls to bump the life/mana leech. At present potion guzzling is a bit of a problem, but I may only need to find one good armor to solve that problem for a while. This doesn't seem like the worst choice, however the weapon does already have 10% Life Stolen Per Hit and 5% Mana Stolen Per Hit.
Other thoughts I've had include using Eth for the -25% to target defense, Mal for prevent heal, and perhaps Dol for 25% monster flee.
Given these circumstances, what are solid options that will be useful through the Nightmare Acts 4,5 and into Hell?