Low end: http://www.newegg.com/Product/Product.aspx?Item=N82E16824160046 <-----I have this monitor great monitor, i had one dead pxl it cam with :/ o well got it for 75 bucks wholesale
Mid: http://www.newegg.com/Product/Product.aspx?Item=N82E16824005132
High end: http://www.newegg.com/Product/Product.aspx?Item=N82E16824009157
All of these a great monitors.
EDIT: WOOAHHH WOOOAH WOOAHH! 4 Grand for the whole set up? Dude, if you droping that much, i would go for 24' minimum. I would prop. go dual 24's
The dual screen just seems annoying to me, having a bar in the middle of them would drive me up the wall.