My problem picking the perfect laptop out of 2...

Ok, so no introductions... I have:

1- Dell Inspiron 15R (http://www.notebookreview.com/default.asp?newsID=6121&review=dell+inspiron+15r+n5110)
2- Asus N55SF (http://www.pcworld.com/article/243496/asus_n55sf_review_bright_fast_and_booming.html)

My problem is:
I am in a big love with anything has Dell logo (except our company servers they are HP :S), and I am looking for laptop with configurations same as the ones in the Asus above... so I found that Asus, but on Dell I did not find anything... I was looking for XPS 15, but it is wiped all over the market, the only thing I found was the Inspiron 15R
I am OK with the Inspiron (my current laptop is inspiron 1525) but the only issue the inspiron has is THERE IS NOT DEDICATED GRAPHICS CARD!, I mean it comes with one (Intel stuff) but that sucks, the Asus one comes with NVIDIA 540M...

Bottom line: I don't want to change to any other brand except Dell, but I find myself forced to do so by taking this ASUS...
Shall I do it?
Does the ASUS worth it as a laptop? and does it worth to use over Dell?
I am thinking of HP also, but not seriously...

HELP!

I got the Dell Inspiron 15R (N5110)...