Hello, my 20ish yr old Oreck 8 has apparently expired - in the market for something new. Have a 4000 sq ft home - all 85 yr old pine flooring with several Persian or other Eastern rugs - no carpeting otherwise. Have a german shepherd dog that lives inside, so pet hair is an issue. Also house is upstairs/downstairs, so stairs have to be vacuumed and vacuum also has to be lugged upstairs. We have pretty much settled on bagged over bagless. Being as gentle as possible to the wood flooring and rugs is important, but obviously need house to be clean. I'm considering Miele S7xxx cat & dog, Sebo X4 Pet, Sebo Felix and possibly Windsor Sensor (XP - maybe). Would be most appreciative to hear some enthusiast opinions that might help me choose between these and perhaps make suggestions if there are other brands I should consider - I have no prob shelling out in the $700 range, but that's prob as high as I really want to go. Thanks in advance for any help. (I also mistakenly posted this on the Buy/Sell forum).