HP800s seem to be quite OK for the price, but supposed to be creaky. HP840s appear to be fairly bright and a bit lacking in bass according to what I found here. HP890s used to be FOTM here a while back, not without reason. Not much is known about the still fairly new HP830s, but only a few hours ago there was a thread on the HP820 (fairly positive, too). Ah, the HP800 apparently is the same as the HP820 minus a more comfy headband. But note that these are far from $80 cans. Philips cans are apparently cheapest in southeast Asia.
When picking up Senns in Europe, the HD280 definitely is out of the budget, along with the K240 of whatever favor (even the K240M is >80€, the K240S >100€). (Grados also are fairly expensive, and many Koss cans are overpriced. KSC-75 and PortaPro pricing is OK, but you can pick those up everywhere.) PX100, HD497, HD465, maybe HD485 (provided you can find the latter two), these might fit. If you're good you can find HD570s for <60€ here in .de, so these might be another option. (HP890s and HD515s are a bit more expensive, but not dramatically so.)