^ i would definitely take the z68-d3 regardless of whether you plan to overclock (i7-2600k) or not (i7-2600). it has about a zillion more features and a better warranty for the same price.
its hard to give you noise advice because i dont know what is making your current computed "loud", and people have very different opinions on what constitutes loud. it could be your case fans, cpu fan, psu fan, case vibrations, hdd, or gpu fan, or a combination.
looks good. in terms of the ssds, the ocz agility 3 seems to be the most problematic of the new ocz ssd line (BSODs, crashes, etc). my choice would be a 128gb crucial m4 or 120gb vertex 3 (which conveniently includes a 3.5" drive adapter) for both OS and programs.
an aftermarket cpu cooler can be quieter than the stock fan if you find that this is still a problem with your new build.
Good point on the SSDs and I appreciate the input on the memory.
As far as memory usage, it is not to impressive. Adobe products eat memory. Especially when working with files from designers that are huge. The tend to layer everything and never delete anything. (at least the ones I work with) I probably run in the 65-75% usage most of the time. I just don't pay much attention until things are getting a little sluggish which is about the 80% mark or a little above and I close some apps and down we go and things run better again.
Thinking maybe I should add a new PSU while building and not have to mess with it later. Any suggestions on that?
The current PSU is an Ultra 500w that is three years old and no longer manufactured. It has modular cable system and I may not even have the cables I need with it. I'll have to see if I can find the ones that came with it that are not in use.
Got the machine up and running. Everything is working great, easy build. The OCZ SSD is really fast and the F3's aren't bad either. Did a little stress testing with fractals and this thing is not disappointing.