Aside from a very select few makers, most "studio furniture" that is available in stores tends to be really crummy stuff in my opinion. They are usually just glorified particleboard computer desks with a few music-y things tacked on.
Quiklok makes a WS workstation setup that is essentially a skeleton frame that you can adjust quite a bit. Add pieces, attachments, etc.
And if you're looking for something more turnkey, these guys make the only over-the-counter units I've ever seen that look as though they are actually designed for musicians with some real thought put into them. http://www.mrack.com.au/
I can't think of many others that are worth looking at. Specialty ergonomic desks are awesome but super expensive. Looking up (or down) at your screen is really bad for your back and neck and will lead to fatigue and pain. Eye level should be about at the top of the screen. Unfortunately most studio furniture makers don't take any of this stuff into account at all.
You obviously can't lower your screens, but could you raise your chair at all? Even a few inches could make a big difference on the neck.
Personally, I prefer to work standing up most of the time, with little breaks of sitting to change it up. I use a $109 "bar table" from IKEA that is the perfect height and I just mounted a $20 IKEA tabletop I had laying around. It's pretty great. I use a tall drafters chair/stool for when I want to sit. In my case now, my computer screen sits way to low because I'm standing up so I needed to raise it rather than lower it. IKEA again. A $20 CD shelf thingy now acts as my "meter bridge" and keeps my monitor at perfect height. My actual monitors (speakers) are on little stands of their own so those were never an issue.
Standing is awesome if you have back problems, burns calories and improves productivity. I urge people to give it a shot.