Looks like a nice setup, but it's hard to compare to a Mac if you don't have a price for your notebook.
A. SSD, I have a tiny one in my MacBook Pro and it made a HUGE difference in speed. Things that took 1-2 seconds to load are instantaneous now.
Since it is a laptop you do have to give up some storage space, but I can live with an external drive as storage for pictures and movies.
Since my trade doesn't require me to work with large files, I can get away with a small SSD for my main drive.
Another thing I've seen some people do is get rid of the optical drive and put a HD in that slot. It's called an optibay adaptor. This way you can have an SSD and HDD in the laptop, but you give up the DVD drive.
http://www.mcetech.com/optibay/index.html
There are cheaper versions on eBay.
B. The Apple comparison, yes it will always be more expense or not as fast.
Then there are the typical OS X and software comments.
Yet there are a few small things why I stick to Apple:
1. Warranty from Apple is awesome, from what I hear so is Dell.
2. The physical interaction of the laptop. I really like the Apple LCD, keyboard and multi-touch trackpad, they just work and feel nicer than most PC ones.