The Senn HD595's are easy to recommend. They offer an upfront and smooth sound. The $190 is US (Amazon.Com). Their circum-aural style is highly comfortable, as most mid-upper level Senns. I've not used them for surround sound (besides CMSS3D & EAX with the X-Fi, but that doesn't really count, eh). IMO, they cover all music types well offering nice bass and complete, but not abrasive, treble response. Mid-range is very smooth, again, these are an upfront sounding can. ...easily driven out of an iPod or soundcard directly but sound great amped. I can listen to these all day and all night and NEVER grow tired of the sound or feel that they're uncomfortable.
In comparison, the GRADO's sound AWESOME (yet cost significantly more) and grow uncomfortable in about an hour. The offer great bass but possess a sharp treble response that some may find fatiguing. I'd not recommend the GRADO's as one's only set of cans. They're more like desert with the Senn's being more like a fine meal.
...again, the 595's are very easy to recommend.