Hmm, the Dell 2408WFP seems to have dropped in price again.  RM1699.  Still expensive, but it's a VA screen and has more inputs than the number of pimples on an average teenage employee of mcdonalds

High Definition Multimedia Interface (HDMI)
2 Digital Visual Interface - Digital (DVI-D) with High Definition Content Protection (HDCP)
Display Port
Video Graphics Array (VGA)
Separate Video (S-Video)
Composite Video
Component Video
HDMI 2.1 Audio Out
1 USB 2.0 upstream port
4 USB 2.0 downstream ports
9-in-2 media card reader
DC power connector for Dell Soundbar

I play rock band and ghwt on it at standard lcd calibration settings and I've not noted any significant input lag.  And i use it for general pc gaming as well.

I read an article on this recently as well and there are some monitors which are especially prone to this especially when they have crappy algorithms to reduce response time.