I use the UAD card

It does'nt sound as nice as a high end lexicon but for 1000 , i think it is a great deal. The compressors rock and the reverb is at par with waves r verb.

If you are on a budget , i think the UAD is a great purchase.
To give you an example of its power , i had a track with 24 eq strips , 6 compressors and 2 reverbs all powered by the card so no host cpu needed.