People who posted in the latter half of this thread have said some of things I was thinking, but here are some of them again.

(Note: I'm not a designer.)
1. I don't like the monitor stand. There isn't much point to having one if the space underneath the stand wasn't usable for your work. It's not like an iCurve or something (nor should it be). The gap is just large enough for you to slide your keyboard underneath, right?
The stand also prevents you from cleanly having a dual-monitor setup.
2. The base bars aren't a very good idea, like ThunderRobot said. If the floor isn't perfectly level, the user would run into problems. Designers who are considering this desk for their work, which would likely cost a lot more than a typical desk, won't make choices like most silly consumers.

A table with 4 legs, and without the board running along the ground is probably more appreciated. Your design is prettier though.
3. Forget iPod docks and speakers facing vertically. Like you said, there are issues. I mean, if liquid spilled onto the desk, there's a possibility that your electronics would be ruined.
4. I don't know where you've put it (can't find it...sorry), but where did you put the USB dock? I'd put the powerboard and USB dock along the left and right sides of the desk (not the table-top).
5. I don't think the middle drawer should be there. That way, you could put a keyboard drawer there instead. You can also fit one underneath the middle drawer somehow (?), but it would be quite far down from the table-top.
6. Instead of drawers like the ones you have, perhaps have transparent lids on the top of your desk. As mentioned by someone else, if you're a designer who sits at his desk all day, do you really want to move out of the way just so that you can get something from a drawer? It's not as practical as it could be. If the lids were on the top of your desk, and transparent, you could look into the drawer and see whether the pen, pencil, etc, is inside without having to open it. Also, you wouldn't need to move out of the way to open the drawer.
7. If you have the middle drawer present, and you're worried about heat, have you thought about having perforated drawers, or drawer bottoms/sides? They could be metal while the other sides of the drawer are made of wood. I don't know how feasible this is.
8. The table should be inclineable, at least a little bit. Having said that, there should be a short lip sticking out from the edge of the desk nearest the user so that pencils don't just roll off when the table is inclined.
Heating would be an issue but I would advise that the middle drawer would be for equipment that wont have much heat produced. Likes, phones, personal music players, docks, some hard drives, etc.. whatever the user wants to. Maybe even a small sound mixer for audio engineering
You can recommend how the table can be used, but if a user chooses to put something in his drawer that creates a bit too much heat for its own good, your desk should be able to accomodate that heat without screwing up his equipment.
Your desk should NOT get in the way of their work. They should be able to put whatever they want, in whatever drawer they want, as long as it physically fits inside. It's a desk drawer, and the desk is a place to do work. You shouldn't have to work around it.
Adding additional equipment means added cost, also the more integration there is the less flexibility there is. Graphics pads tech would move on leaving the desk needing an upgrade. It’s easier to have separate equipment like that. No one would buy a desk for £2500 because although it had everything in, not everyone would want it all and it would waste their money. If they were optional it means more lines of production, more parts and more money even if no options were added.
You're absolutely right. Don't include it.
