My first team is at lev 70 so was where your at a week or two back. I found instances to be really slow since my toons weren't very geared etc like yours. Doing all the easy hellfire quests gives u heaps of gear, and should give u the quests for ramps etc so I did ramps a bit and the second instance there a bit too. Beyond that I quested to 68 and instances when I ran out of easy quests in a area and wasn't high enough for the next. I choose the dungeons specifically and just kept running them. I only ran 4 different ones in BC.

You learn a lot doing instances, but it takes a lot of time. Now I'm 70 I'm running uk normal, it's slow but I'm leaning and becoming a much better boxer because of it.

Harry