Amber...
I almost choked on my coffee when I read 2 posts above where you indicated you had purchased macro and wide adapters. If the total cost for the same is less than about $50, they're better off in the trash. When I first upgraded to a DSLR, I, too, bought some cheap screw-on 'adapters' - 1 tele and 1 macro and after testing the first one, threw them both in the trash. Lesson learned the hard way...or was it the not-very-expensive way vs my normal 'expensive' lessons.
As far as whether or not the 60D a pro camera, not by most peoples definitions. As others have stated, it's not built like a tank (some kind of plastic body, but mine "took a lickin' and kept on tickin'", as John Cameron Swazye used to proclaim about Timex watches). In my estimation, unless having to shoot in darker environments without a flash (eg, churches), it'll do just fine for practically everything you want to photograph. It's more about knowing the exposure triangle, it's various tradeoffs, and the practical limits of your camera and lenses.
As you indicated, you're using generic lenses (non-Canon?) with adapters, and/or more likely Canon EF-S lenses that work on Rebel, xxD and 7D bodies. While they generally produce good images, at the extremes of aperture sizes, image quality suffers a bit. Put a cheap 'protection' (clear or UV) filter in front of them, and image quality noticably takes a hit. So, before you think your 60D can't cut it, upgrade to some 'faster' glass...f-stops numerically equal to or lower than f2.8, and dump the protection filters, if you use them. Lens hoods take a lot more bumps and hits than a glass filter will and limit lens flare issues.
As far as is the 60D a 'pro' body, at least one wedding photographer pro on this web site is using a Rebel with non-pro glass. As stated many times by many people on this site, it's the photographer, not the camera.
For me, the 60D was a great all-around camera. Coupled with good glass (Canon Ls), I got some very good shots. But as I do most of my shooting at church events without flash, the 60D didn't have fast enough ISO speeds without too much noise that I could keep the shutter speeds fast enough to stop action. So in darker settings, because of slow shutter speeds, my keeper rate was about 1 in 25, where the subject really did 'freeze' for the 1/20th of a second or so. So I bit the bullet and bought a 5D mark iii. Well worth the price, but noticably larger and heavier than the 60D. I knew I was headed that way, so I replaced my EF-S lenses with Ls that would fit all Canon cameras in a year preceeding my upgrade.
Perhaps my biggest 'loss' going to the 5Diii is no more swivel screen. That worked great for shots holding the camera above my head or at or near the floor. I did several floor level and above the head shots just a week ago. My keeper rate was dismal as I had to guess where to aim the 5Diii.