How much do you wanna spend? The HD25s are aimed at DJs but are supposed to be great all rounders. There's a few different models but they all get consistently good reviews.
Have you seen this?
Studio Headphones
Check out the SRH840s, i've 'listened' to them, albeit briefly but the sound reproduction was pretty fantastic so they'd be great for djing i think. I know what you mean about flip flopping, i keep going up and down with my budget (thanks for making me aware of the grados!
), but it's really hard to decide without actually hearing them.