I'd suggest tweaking the color balance on the monitor a bit. There should be a menu item to adjust color on the monitor itself. I suggest setting a custom color profile on the monitor rather then relying on the standard "warm"/"cool" type settings. (I have a Dell Ultra Sharp, and had to tweak this a few time before I got it right).
It's worth pointing out the calibration on most LCD/LED monitors can be very difficult since the color and contrast can change with the angle of view. While newer higher quality monitors minimize this, it's still evident.
Also if you really want everything well calibrated you can pick up a calibration system for ~$100. I have used a Huey Pro with great results for years, sadly it seems to no longer be sold, however this: http://www.pantone.com/pages/products/product.aspx?pid=1339&ca=2 seems to be similar (perhaps it's replacement).