GrahamConnell

I can not wait to see the mad max built on scrapyard wars!

Yup the SE 215s are my daily drivers and they are perfect for me. Well-balanced highs, mids and lows for the price point. If you are the bass-hungry type of guy, go for the Klipsch R6/R6i. Or you could just get aftermarket earbuds that fit in your favorite pair of IEMs if they are available in your country.

i would recomend klipsch for small ear canals, the oval tips they have is small in size but are very comfortable, but shure se215 also a very good choice

also try the shure se215 series.  They rival with the sennheiser momentums all the time.  Both have good reviews
EDIT:  I also forgot to say that they are basically 100, and they have a plastic-y piece around your ear that keeps them in.  They beat skullcandy almost anytime

The sennheiser momentum in ears, seem to have small tip's

more mis!!!!! love mic reviews.... and audio stuff in general. Maybe you could do like an "ultimate living room audio setup" or "ultimate home theater"

Fire Pro or Quadro is crazy expensive, you're probably better off getting a GTX 970 which will still work very well for your 3D solidworks stuff.  The biggest difference is hardware optimizations for OpenGL, but the gaming GPU will still work well.  it also has the benefit of running games =)
 
The i7 4790k is also a good idea, and 16gb of low latency RAM.  
 
24" 1080p is a good size for what you are doing.  If you were already done school and working as a professional, I'd suggest at least a dual display setup, but that might be overkill for a student.
 
Also, realistically, you can get away with a much cheaper system for what you are doing.  The most challenging software will be solidworks, which can run on a low end system reasonably well.  An i5 or even i3 with a 280 or 280x will get the job done.