A yet another 'neutral' closed can thread. Slight twist though

So after being a lurker here since what seems like forever, soaking in all the info I could, I'm committing myself to finally get a good set cans.

Looking for a closed set which would serve a couple of purposes.

First, I'm a student studying digital media- sound is a big part of it, so a good 'reference' headphone would be an absolute pleasure.

However, I also play guitar, and due to a very hectic schedule I'm on for most of the year, guitar time is often later on in the evening (i.e. night), so an open set is out of the question, sadly =(

On top of that, a set which could be used for some listening would also be quite nice. Not looking for a huge bass emphasis, but something that can handle metal quite nicely, and at the same time be 'reference' enough to facilitate mixing and nitpicking, is the best I can do to express it in words. Nitpicking comes first, musical pleasure comes second.

So I'm thinking that maybe the DT-48 can wait for a little while. What would you guys suggest? DT220? Maybe a set of woodies (D5000, Thunderpants?) or D2000 maybe? M50? 

Driving these anywhere is a huge bonus, but I'm not afraid of a transportable amp- not planning to do any listening outside anyway.

Also, if you think IEMs are a better bet for me, please let me know. 

I know you guys know your stuff, and I'm all ears. =D

Aren't the 770s quite the bass monsters? That's what I've taken in having read around here, I could be very wrong.

Having looked at the ~130 page FA-003 thread, they're definitely on my list, as are the Shures, HD25s and DT250s.

So having said that, how would the FA-003, SRH440, SRH840 , SRH940, HD25 and DT250 compare between themselves? Far as I understand, the SRH940 should be the highest tier among the three Shures, am I correct in thinking that? 

Also, how 'reference' would the HD25 and DT250 be in comparison with the other four? I'm basically looking for the most micro-detail capable set of cans I can find without investing too much into the audiophile territory (I wouldn't be able to tell =/). Sorry for the incredibly nooby questions, I can imagine it can be a little grating. 

Thank's for your time everyone, you guys are legends. =)