Bob,
the Warm stuff is outstanding. The ToneBeast is a very flexible beast for a preamp, while the WA76 is a great take on the 1176. The WA76 gives that edge to a well compressed sound you have heard on countless records. Great for rock, rock vocals, bass, etc. Well worth having although it is a bit of a one-trick pony. It can work as an everyday compressor, but shines on producing that 1176 sound. Once you play with it, you'll hear it.
The WA12 is the main part of the ToneBeast - an api-style preamp. It works fine, even if it doesn't have the shades of color you get from the TB. Most interface pres, including the Digimax, are transformerless designs. Transformers (like the cinemaxs in Warm stuff) work great, in my opinion, in digital recording, helping roll off the sharper spikes one gets with the digital formats. Combined with transformerless designs, it gives you more kinds of sounds. The WA12 does this, while the TB adds more flavors internally.