I'm going Saturday morning to one of my favorite spots...... It's off the Bee Line Hwy, near Saguaro lake. Plenty of places to shoot there, it's basically a dry river bed. You have to go back a ways to get away from all the moorcycle and ATV riders, but it's a great place.
From Mesa, take Hwy 87, which is Country Club Dr. You go about 25 miles, toward Saguaro Lake. Immediately after the turn off to go towards the lake, there will be a left turn off of the Bee Line. (DO NOT take the turn to go to the lake, stay on the Bee Line.) Take the left turn and you'll hit a dirt road on the other side of the hwy. A 2WD vehicle will be fine until you get down to the river bed, about a mile, but after that you probably should have 4WD. Although on the weekend, there will be someone there to help get you unstuck.
E-mail me if you want more info.... or if you want to tag along. I'm going at 10:00a.