Well, since the OP was in Jan I don't know if this thread should still be active but I'll add my 2cents just in case others are interested.
I've been in the LV area now for about 9 months and I can say this is NOT the place to be out between mid May and late September due to the heat. We have typically a hundred days or more above 100F degrees and many days above 110F so hiking around during this time can be dangerous.
That said, LV has a lot to offer photographers. Within the city there's the strip of course, but to see what NV has to offer you really need to get out of town. The closest locations are Hoover Dam and Red Rock Canyon and these are both great places if the weather is OK. My personal favorite location in the LV area is VOF (Valley of Fire) and though it's about 60 miles from LV it has many multi-colored formations that I haven't seen anywhere else.
And, a bit further away we have Death Valley (110 miles), Zion NP (200 miles), Grand Canyon (about 300 miles to the villiage on the south rim), Mono Lake and Yosemite (say, 350 miles).
In fact, were it not for the fact that LV is too hot for too much of the year it would be a nearly ideal place to start/end a photo tour.