I've bought a 580EX II today & Canon Wireless Remote RC-1 !!!
Canon Speedlite 580EX II w/Soft Case & Stand
This is the premier Speedlite for all photographers, including professionals. Newly designed to match with the EOS-1D Mark III in terms of improved dust- and water-resistance, body strength, and the ability to control flash functions and settings from the camera menu (EOS-1D Mark III only). Other features include improved communication reliability through its direct contacts, and recycling time is both 20% shorter than the 580EX and is completely inaudible.
Approx. 20% faster recycling time compared to 580EX
Superior build quality, including a metal foot for higher rigidity
Max. Guide No. 58 at 105mm setting (GN 190, feet)
Auto conversion of flash coverage with compatible digital SLR cameras
White Balance info communicated instantly to compatible digital SLR cameras
Full swivel, 180° in either direction
AF-assist beam, compatible with all AiAF points on every EOS SLR
Dust- and water- resistance to match the EOS-1D Mark III
Canon Wireless Remote RC-1
This miniature infrared transmitter operates at ranges of up to 5m/16.4 ft., and may be set for either instant shutter release or 2-second delay. The RC-1 may also be used to activate mirror-lock and bulb-shutter functions.
Supported models include the Canon Digital Rebel XSi 450D, Digital Rebel XTi 400D, Digital Rebel XT 350D, Canon EOS Digital Rebel 300D, Canon EOS 5D Mark II, Elan 7/7E, Elan II/IIE, Elan, IX, 10S, Rebel Ti (Date model only).