Ordered this beauty from eBay two weeks ago.
Aftermarket Grip for 550D/T2i on Vimeo
There are several after market battery grips out there and a few intervelometers. This one has both.

No problems so far!

Thanks for the information Rusty.

Can you tell me if it works OK with the Zacuto Z Finer Pro, or does the fixing plate not line up?

Peter

It looks like the Z-Finder Pro3 attaches to the underside of the camera, not the LCD itself. (like mine does)
Search for "Z-Finder Mounting Frame for Small DSLR Bodies with Battery Grips"
Another 120 smackers!

Out for a long wedding shoot last weekend and not a hint of overheating!
Granted the wedding was in the rain (literally) the reception was quite warm.

Rusty
I just received mine exactly like yours. I like it a lot but the only thing is that I can't get the time lapse to work. Please let me know how you set it up (if you managed it that is). If you press the up navigator button then you get the "DELAY" flashing then pressing OK you get the seconds "00" flashing and you can increase it by pressing the "up navigator arrow" ; then what do you do next to operate? If I press OK you have the "DELAY" flashing again. and another thing what does the "LONG' and INTVL" do?

Other than this the battery grip is fine.The make is "Meike"

Stelios