Should I go to a Benchmark DAC1 pre in my system?

I own the Benchmark DAC1 USB (not the pre) and have been listening to it for about three months in a computer based system (Mac mini/Itunes/CD collection imported to hard drive-AIFF)and my opinion so far is that it compares favorably to my Linn Ikemi CDP. My main observation is that the presentation is just different, not really better or worse. The Benchmark seems to lack any character of it's own and perhaps that what impressed Robert Greene so much. I have read the review in The Absolute Sound and although I have never heard DCS gear, I do not believe that the Benchmark would compare as favorably as the review indicates.
My opinion is that in the context of your system the Benchmark DAC1 pre would be a very worthwhile addition and would allow you the option of trying the server route as you mention. So far I have thoroughly enjoyed the way I can access my music in this setup.
Benchmark offers a 30 day trial period, so you could try it out in your system which is always the best way to go.

I'm too looking into the DAC1-Pre.
The question is not whether the DAC is good but how good is the preamp section or the DAC1-Pre? Would I be better off with the DAC1 USB and a passive preamp...or some other configuration?
I really wish I could audition this gear.

I thought Benchmark had a 30 day.....theres no question its good as its been around now for many months.As usual,the question is"Is it synergistically in tune in my system?"Many say yes,I know I was 48 hrs from one and then I got pulled towards a Bel Canto at the last minute,but I digress....good luck,Bob

Synergy in the system to match the individual's taste is always the main key I've found.

Good to know there is a 30 day trial to find out.

I'm not sure if it would work better in my system as just a DAC or as a pre and DAC. I could try it both ways and see without much risk.

How are you going to hook up your TT? The Benchmark has three digital only inputs (or at least the model that I had did). You cannot bypass the Benchmark because you need a volume control.

You have a Musical Fidelity A3.2. Is that a preamp or an integrated?

I went from a Benchamrk DAC1 to a Musical Fidelity A3.24 DAC. I prefer the MF. A little more warm bass (not a huge difference). You can pick them up for $600 or less. You can run you server and CD player into it. Whichever fires first will be recognized by the 3.24 DAC.