I own 4 canon dslr's. 10D 20D 450 and 7D. They are all good cameras and I really like my 7D. But if I were buying a dslr camera at this point and time I would have to answer some basic questions first.
Why do I need to upgrade?
Why should I buy anything other than a full frame dslr in today's market?
Should I stick with canon or check out nikon and possibly sony? All three brands have recently released lower level full frame dslr's.
If you don't have a lot of high end canon lenses, you may want to consider exploring another brand. If you want to stick with canon, you may want to consider the 6D (You may have to wait for that option - it's been announced but not yet released) The 6D has a full frame sensor and improved ISO's and will sell for $500-$600 more than the 7D. The 7D model is about 3 years old now and is not full frame.
If you're leaning towards sticking with the APS-C size sensor, besides the 60D you might want to check out the Rebel T4i. Many of the same features as 60D but also has continuous auto focus in video mode.