Non fatigueing speaker under 1500

I'm looking to purchase a non fatigueing speaker under $1500. I'm very sensitive to hardness and glare. I'm searching for a set up I can listen to for hours without draining me.

System is Aragon 4004 mkII fed directly by a Theta Miles. Speaker cables are Sumiko OCOS and interconnects are MIT PC Squared. Electronics are plugged into a Tice Power Block.
Room has little furniture and hardwood floors.

Under consideration are:
Vandersteen 2CE Sigs
Meadowlark Swift

Thanks - Jack
Asa, looks like they're still talkin 'bout Meadowlarks....which is OK. If he never hears the 2.5's, no harm done. But if he ever does (after already buying something else), he'll surely be grateful for the secondary market here on Agon! 2.5's on tube gear with some NOS Siemens or Mullards...oh my! If that dont cure listener fatigue, then I'm afraid we're gonna hafta shift the suggestions to remidies non audio related :)
You may want to consider taking a listen to some of the speakers manufactured by the UK company, Castle Acoustics. Quite nice and possibly possessing the attributes that you seek. I have grown to really appreciate the Castle Howard speakers that are set up in my stereo system...smooth and very non-fatiguing with a very 'big' sound to them. This sound should follow throughout their product lines to some degree. Good luck.
Asa and Rg - I see a pair of Proac 1.5's on sale now. Is the step up to 2.5's that significant. How much tube power do they need? Any certain brands?
Gooddomino, I'll try one more time and then I'll step out of this discussion. Do you like to listen to your music at high volume? If you do, then your amp is underpowered and you are looking in the wrong place to solve your problem. Enough said, and I hope that you enjoy your journey.
Angela - Thanks for the input. I usually listen at normal volume levels and occassionally like to jam. It's like a sports car that goes 140 mph,won't always use it but nice to know it's there.