Oh yeah Carl, I'm fully aware. I'm supposed to get over his way to give the Beyers and AKG's a listen. I'm on the market for one of the two. Or both.
Pepe: If you want opinions on Grado stuff, I'm your guy. Otherwise, see what Carl just said. Scott is the dude for non-Brooklyn headphones. I'm limited to Grado, having owned 60's, 80's, 125's, 225's, and 325's, and I've heard RS1's.
If you like the Grado "house" sound, then you might want to check into a set of SR60's. They maintain detail and that Grado "grittyness" without being as bright or in your face as the 80's and 125's. The bass on the 60's is smooth and engaging. The mids are where they really shine. The highs aren't as shrill or sparkly as the 80's or 125's. The 80's and 125's have punchier bass, the difference being more control on the 125's.
Put it this way, I own 325is's, and I still listen to my SR60's at least 25% of the time. You might not be happy with the flat cushions that come with them, so you might want to upgrade to bowls.