Well if you like Senns sound sig, then another option could be the HD 25? I've been told those are very nice. Or the Momentum??? Those are apparently very smooth sounding, and they look very classy IMHO. Sadly neither of these are foldable. PX-200 are apparently very nice if you like foldables?? but you said full cans... I rarely see many full cans being foldable.
If you like the Shure's mid-centric signature (I really do enjoy my SE 425s) then perhaps the SRH440? These are foldable and closed, and a top pick @ Headroom:
I'd like them to be inexpensive. Senn HD25-1 IIs look to be $200 on Amazon (just plain HD25s were like $6-700 :S), too much for right now, maybe in the future.
I need to be focused on saving for an iPod Classic anyway, all I have now is my full HTC One X with Google Music streaming eating up my data plan. I have my S4s, so next is the ipod, then I'll worry about cans. Thanks for the help!
P.S. I had Shure SE215s and I really liked them for the price (I think they were like $75-100), but the suddenly without notice one side just stopped working. Swapping the cables between L and R did nothing. I had a 10 hour car trip the next morning, so I just went down to best Buy and got my S4s and am happy now (except those tips keep popping off and getting lost). Maybe I sweat into them (the 215s) while I was mowing or something, but I didn't want to go with Shure for a while. But I'll look into them.
What do people think about Koss PortaPros for $35-40? I listen to heavy metal (Disturbed, maybe a little Black Sabbath, etc), folk/acoustic stuff but my most popular is hip hop. I don't need monster bass or anything, but I guess lenient/lacking bass wouldn't be desirable.
Edit 2: Maybe just slightly more bass than my Klipsch Image S4's would be called for, but beyond that isn't necessary. Not that I wouldn't want it, it'd be all good if it were there, just don't fret about beyond that point.