Another good deal by top rated ebay seller getitdigital (99.6% positive ratings): Canon EF 70-300mm f/4-5.6 IS USM for $372.50 (click here). Limited quantity, free shipping, and USA warranty.
The Canon EF 70-300mm IS USM Lens is a relatively light telephoto zoom offering a broad range of focal lengths from a single optic, with good optical quality.
An auto focus telephoto zoom lens for both film and digital cameras. Fits all Canon DSLR Cameras (1D, 5D, 7D 60D T3i, and all others)
Appropriate for sports, travel, etc.
Circular aperture diaphragm for natural-looking out of focus highlights
Zoom ring lock to prevent lens ‘creep’ during movement
Image Stabilization allows use of lens in lower light situations without a tripod
f/Stop Range 4-32.
Minimum Focus Distance 4.9″ (1.5 m).
Length 5.6″ (24.3 cm).
Maximum Diameter 3.0″ (7.6 cm).
Weight 1.4 lb (600 g).
Filter Size 58mm.