Ok, so this morning, I decided to take advantage of the 14 days no questions asked return policy of a local electronic store to try a laptop ans see how it goes. I went for the ASUS N550jv. However, being aware of the poor gamut of the base monitor, I went for the touchscreen machine, just to see. It appears to be an IPS touchscreen monitor and viewing angles are quite impressive.
I ran the full evaluation with the spyder4elite and it suggests that the sRGB is covered around 96-97% and a black point around 0,3cd/m2 and very reasonables color precision with DeltaEs under 5 everywhere. Pretty surprised to say the least.
Attached is the printout from the datacolor software analysis.
Now I'll try it for my computing needs and see how it fares. If it is not up to par, I'll just return it and try the Lenovo, but until now, so far so good.
Thanks to everyone who helped. Your advices were all welcome.