This may seem like an odd question but I have noticed that the water coming out of the condensation line that leads from our indoor lennox air handler has rust in it. Is this normal? I know it comes from the water dripping off the evaperator coils, but should they or something else in there be rusting?

I'm not an AC tech but I had similar problems. How old is the unit? Some newer units have plastic drain pans while others have galvanized steel. After years of use, the galvanized pans will begin to rust and color the water. Eventually a hole may appear and the unit will leak - likely leading to replacement of the coil. Some guy offered to gerry-rig a secondary pan underneath my old coil, but I opted for a coil replace instead. You may want to flush the drain and pan routinely - any degree of blockage will hold condensation back and accelerate the rusting.

Its actually only 3 years old and it looks like the pan is plastic. I may just be overreacting but I thought I would ask your opinion before I called a tech.

Even though your drip pan may be plastic the frames holding the copper tubing coils are metal and this will rust and will stain the water. If your pans are plastic you don't have much likely hood that it will leak but you still have the possibilith that the rust will accumulate and create a blockage for the drain lines.