Sounds like you've got the perfect job! But I'm sure your wallet would disagree ;)
Keep us informed how you get on with both of those headphones, I nearly went for the T1's but new I had to try the HD800's first. I really liked the dt880's when I had them though.
I have found them to be different, but not better than one another...
What i find different most is the T1 seperate the instruments and vocal's more as it feels like the singer is centre and you can clearly feel the gap between them and the instruments around.