Pocket Wizard - What do i need for a Nikon D7000 and a Vivitar 285?

I'm new to this whole Strobist thing. I'm on a limited budget, so I want to know exactly what I need to synchronize my Vivitar to the shutter on my camera, or even synchronize both flashes together. Also, I've done a lot of research and there's much debate on what is the best cheap alternative to Pocket Wizard. Opinions? Any help is very appreciated. Thanks!

Added (1). If I were to buy a Nikon SB 700, how would that setup work? I've read that you have to fire off the built in flash on your camera for it to respond when you release the shutter, which is not what I want. Also, if I were to get a wireless shutter release remote, would it also set off the external flash? Thanks for the answers and patience, I'm, as you can probably tell, an amateur.

It'd be cheaper to buy a nikon flash that can be controlled by your camera than to buy a pocket wizard setup. Or the Sigma 610DG Super which can be controlled by the commander in your camera.

For the cheap ones? They're all about the same. They only fire the flash. They don't allow you to set it i-ttl. You get full flash all of the time unless you are able to reduce the power on the flash head itself.
I think I have a cheapie from adorama and one from ebay. They're the same unit. They work OK. And for the price? They're disposable when they go kaput.

The Yongnuo RF-603 is a good inexpensive alternative. The rest of the cheap ones are basically junk.

While they are manual (meaning they don't do TTL) so are the $250 range Pocket Wizards. You have to spend nearly $500 for the TTL version pocket wizards.

You have a highly capable camera that has Nikon's Speedlight IR remote commander capability. Get rid of that junk flash and buy a SB-700 or SB-900. You can buy one of those for less than the Pocket Wizard TTL flash units.

All you need is your D7000 and a SB-700 or SB-900 - they will communicate together through Infrared wireless.