Addressing the question in the title about which monitors to go with....
I personally like Dell's line of Ultrasharp monitors. They consistently review well, rotate 90 degrees in their stands (if you like three portrait oriented monitors, which many do, this is key), and have displayport inputs, which really helps with Crossfire setups. Also they are IPS panels.
Dell has everything from 21.5 in to 30 in Ultrasharps, so it really depends on price.http://www.dell.com/content/topics/topic.aspx/us/segments/bsd/promos/landingpage/snp_ultrasharp_monitor_offers?c=us&cs=ussoho1&l=en&s=soho
If they are too expensive, Dell's line of Professional monitors are also very good, and also rotate 90 degrees. No displayport and TN panels, but they are good displays.http://www.dell.com/content/topics/topic.aspx/us/segments/bsd/promos/landingpage/snp_professional_monitor_offers?c=us&cs=ussoho1&l=en&s=soho