I have been itching for an upgrade for a while and couldnt quite justify the 5DmkII or a 7D (nearly though).
I think I shall be purchasing this shortly
http://www.usa.canon.com/cusa/about_canon?pageKeyCode=pressreldetail&docId=0901e024801e8288
http://www.bobatkins.com/photography/digital/canon_eos_60D_preview.html
* An 18MP sensor with 4 channel readout. This sensor appears to be very similar to that used in the EOS 7D and Digital Rebel T21, though the 7D's sensor has an 8 channel readout which speeds up operation.
* The AF system is inherited from the EOS 50D with 9 AF zones all with cross (dual axis) sensors. The 7D has a more advanced AF system with 19 cross type sensors, while the 9 point AF of the T2i has only one cross sensor (in the center)
* The ISO range is now 100-6400 plus "H" (12800). This is the same as found in the T2i and 7D.
* The maximum frame rate is 5.7 fps, between the 3.7 fps of the T2i and the 8 fps of the 7D
* The popup flash can act as a wireless flash controller, controlling up to two groups of speeedlites
* For the first time on any Canon DSLR, the EOS 60D has a tilt and swivel LCD. While this doesn't help much for conventional still photography, it should be very useful in Live View mode and when shooting video.
* Full 1080p HD video at 24/25/30 fps and the same resolution and frame rate options as both the Rebel T2i and EOS 7D. Manual exposure setting is possible and the 60D has the "movie crop" mode found in the T2i
* The LCD has a 3:2 aspect ratio and Canon's current (and excellent) anti reflection technology.
* There is a "wind" filter which can be used when recording audio along with video. The built in mic is mono, but there is a jack for a stereo mic. There is manual control over audio volume (64 steps) but it can't be changed during shooting.
* 63 zone metering as in the T2i and 7D
* The viewfinder has 96% coverage, and is similar to that of the EOS 50D (the 7D is 100%).
* The EOS 60D is no longer CF card compatible and now uses SD(HC) cards like the T2i. The 7D uses CF cards.
* Canon have finally abandoned the BP-511 battery of the 50D in favor of the LP-E6 which is used in the EOS 7D (and 5D MkII). No current EOS DSLRs no use the BP-511/512 Li-ion batteries.
* The weathersealing of the EOS 60D seems to be somewhere between that of the T2i and the EOS 7D. It's not super weather sealed, so it shouldn't be used unprotected in heavy rain, but it shouldn't quit if it sees a little drizzle
* The shutter is good for 100,000 cycles (same as the EOS 50D). Max speed is 1/8000s and sync is 1/250s (same as EOS 7D)
* There is an electronic level, but only for the horizontal axis. The 7D has both horizontal and vertical levels, the T2i has none.
* There is a position on the mode switch for video and a dedicated "start/stop" button. When not in video mode, the same button starts and stops Live View.
* The mode dial has a locking button in the center which must be pressed before rotating the dial to change modes. This makes it harder to nudge the dial and inadvertently change modes. Hopefully Canon learned their lesson with the A2, which had a similar, but notoriously fragile, mode change locking button.
* The on/off switch is directly below the mode control dial (as in the EOS 7D)
* The buffer will hold about 58 JPEGs or 16 RAW images. This is better then the T2i but not quite as good as the EOS 7D for JPEGs.
* The 4 way controller used for menu selection, AF zone selection etc. is now incorporated inside the rear QCD on the EOS 60D.
* The list price is $1099 and that's what it should initially sell for. In time the price will likely dip blow the $1000 point.
...and the downsides of the 60D vs. the 50D...
* No AF microadjustment
* More plastic
* No PC socket for flash
* The "joystick" replaced by multi-axis controller integrated into QCD