On NASIOC there's a "cocktail" of tranny fluids that are said to get great results. I wrote it down last night for when I get my 30k service done, I'll post it up when I get home (still at work right now).

EDIT: OK finally home. Here's the formula, along with places the poster of the formula bought them in his most recent batch. Keep in mind the fluid fill amount for the 5-speed is approx 4qt.

Pennzoil synchromesh 1qt: Autozone
2 Qts Castrol HypoidC 80w90: Pepboys
1qt Redline Lightweight Shockproof: Local Speed shoppe