I have Yongnuo RF-602's and the new version is the RF-603 - they work great up to the sync speed of 1/200.
That said, if you want an ETTL version, I have heard the Phottix Odins are the ones that are setting the new standard. They can do ETTL and manual mix and of course you can control it all from your camera position. They also support HSS.
OP, I am still not sure if you are looking for a remote shutter release or remote flash triggers. In either case, if you don't want ETTL, I still stand by the Yongnuo's 602's or 603's and set to a different channel than the flash remote they can double as a shutter release too - very handy and you can get a trigger and three or four receivers for under $100. The 603's are tranceivers so they are both Rx/Tx.
If you want a cheap, reliable intervelometer, you can check out a Yongnuo MC-36R - it is a wireless shutter release and intervelometer.