Fotga has released an impressive budget follow focus, and if you're the type who's against 'cross branding', now they are starting to leak out a Standard set of rails to match. The basic rail set is needed to mount the FF, and should normally come with a camera mounting plate and a tripod plate (under the rail set). It's industry standard 15mm with 60mm apart, with metal knobs (not plastic) and also come with a lens support clamp (adds Long lens support when using an FF).
For a bit more Fotga has another set that includes a (proprietary) Quick release system. Looks like they are working towards a full shoulder rig, which doesn't seem to be available just yet. Not extremely competitive with pricing, but compared to what we were seeing just a year ago it's a welcome option.
Fotga Standard Rail Set Optional Quick Release
A quick look around the budget Fotga Follow Focus. This was another one shared on this blog just a few weeks back which has a 'riser' design to make sure it can always hit the lens gear. Sometimes using smaller diameter lenses or tall Battery grips will render some FF's useless. This is not a reversible gear, but of course if can still be mounted either left or right. Definitely looks like quality stuff, not cheap plastic. A great option next to the other FF's on the market. I can't tell if the crank whip notch is standard (a minor issue with RJ's follow focus). A bit of lash like most FF's in this range, but not too shabby for the price. For just a bit more, there's an option for a 'quick release' version in case you're using MatteBoxes and such. [Thanks Eirik]
Fotga DSLR Follow Focus with lens Gear