Well, I'd ride that bike, and I'm the same height with a similar inseam measurement. Of course, what I like might not be what you like. That bike is definitely a good place to start and the price is definitely good for that spec. It looks good too.

WRT the Rockshox/Fox thing: it's more that Rockshox provide a range of forks to suit a range of budgets, where as Fox pretty much just makes the top of the line ones to suit larger budgets. The REBA on that bike is the second to top of the range of about 5 that could have been specced on a hardtail like that one, and you'd not be likely to find a SID (the top of the range XC race fork) on anything other than a dedicated race bike costing megabucks.