Rigs for DSLR shooters range in size, functionality and cost, with high-end manufacturers like Zacuto and budget places like Jag35 (you can also find even cheaper stuff on eBay!) Occupying the middle ground is Redrock, who sell a variety of units that seem to be well regarded for durability.
They have now come out with a stripped down budget rig, the RunningMan. This looks interesting because it starts at $400, with a "full kit" costing $600. Though it's been pre-announced, they haven't done a proper announcement yet; it's not on their website. It's also unclear what's included, though I don't THINK it includes a loupe; even though one is shown in the photograph above. The text says it includes the microFinder loupe accessory, which is actually just an attachment for keeping a loupe connected to your camera.
Cost wise, it certainly looks interesting, though with most rigs, I think you need to try them out to see if they feel comfortable and fit your way of working.
Hopefully more details will be forthcoming shortly.
Photocinenews.com: Redrock Micro RunningMan Debuts on PhotoCineNews
Jag35.com: Full Shoulder Rig
Zacuto: Product Spotlight