The albums I am most concerned about are 10/39 and Kerplunk from Green Day and Cheshire Cat and Dude ranch from Blink 182, but the software I use for playing my music (winamp) has an EQ slider. Does that fix the problem?
Well, EQing is often not that easy, and most of the times you just end up degrading overall sound quality in order to remove a certain sound that you don't like.
There are some parametric equalizers out there with good reputation, but again, EQing is a quite discussed topic and also often a bit controversial.
(What about EQing Sennheiser HD598 to make them sound like HD800? And that kind of stuff, you know...)
I don't have much experience with equalizers, but in real life things are not as linear and predictable as we would wish. You can try different equalizers, you can get ElectriQ parametric equalizer (I think there is a free version) and if you like what you are hearing after eqing then it works for you and that's what really matters.
Anyway, I suggest you to give your mind some time (let's say 20-30 hours) to get comfortable with the sound of your new headphones before getting into equalization.
I've tried songs from Cheshire Cat and Dude Ranch with my DT990 250 Ohm version and while Cheshire Cat has better sound quality to my ears, both sound good and the bright sound signature is not a problem (to my ears) with this music. I've also tried music from those albums with my Fidelios L1 and Yamaha HPH-200 and prefered DT990s over them.
Best Luck!