Whatever you go with, definitely get as much RAM as possible. An SSD will help too but not as much as RAM will where Photoshop's concerned. (And they're correct on using an SSD scratch disk; it won't matter if you have plenty of RAM.)
Even a "mid-range" video card will handle Photoshop just fine. You don't need a bleeding-edge, top-of-the-line CPU but, of course, the peppier, the better.
I'm kind of a "less is more" kind of guy; I don't like my chassis to look like it's something from Tron (though I do like the series and its art direction). xD
Keep in mind Microsoft announced Windows 10 a few days ago. There's rumors swirling that Windows 8 and 8.1 users will get to upgrade to 10 for free but nothing's confirmed as of yet.