I've had a digital bridge for a while now (Fuji finepix s1600) but I recently got to try a friend's Canon DSLR. It was amazing. She can't remember the brand name (

helpful for me. Canon 50D or 100D she said) but I enjoyed using it much more than my own camera.
I'm willing to learn about DSLRs, but right now I just need a few recommendations. Apologies if this is in the wrong area. Basically what I need:
Responsiveness. Hers was *click* Picture taken. So much better than mine, unless I'm using it wrong, where I have to focus it and then take the shot, or it won't focus - at which point my subject has moved or is getting annoyed.
Manual focus. Whatever lens was on hers I twisted and it would zoom in and focus on the subject - my own camera has a button that you pull to zoom. Mechanical. Slow and not fun.
Noise. Loved the picture quality in hers. I can barely take photos in low-light situations with my own camera without lots of noise/blur or using a tripod on a low ISO setting.
I also already own Photoshop. I love Macro photography and would be using my new camera for shots of friends as well as macro shots, and some landscape ones (Kodak moments

) that catch my eye, as I'm going to be attending art college soon and lots of things I see I wish I could take a picture of..
In a new camera I'd like quick responsiveness (ie I hate shutter lag!), an LCD viewing screen if possible, good pictures at high ISO settings and I'm guessing aperture levels and such change depending on the lens. I'd maybe like some prints of my photos but it's not a necessity.
Price range.. around 500 euro if that's possible. I'm willing to go second-hand.
Again, sorry if this is in the wrong area. Ideas?