Like the 5Dmk2 the 7D shoots H264 codec. This must be converted to an editing codec like ProRes (1920 x 1080 so same pixel aspect), before ingesting into FCP. Do not just drop the .mov files into FCP as it will play badly and need rendering.
Use compressor to do the batch conversion. You might also want to use Compressor to slo mo the 60fps down to 24 using frame controls. Now the big question – is the 24 frame mode actually 24 or is it 23.976? Canon has been driving this forum nuts with people trying to get the 5D footage to correct speed of 29.97 from the 30 native. I don’t know what they have done with regards 24fps, but I wait with baited breath.
At least Canon have corrected the audio sample rate to 48khz in the 7D. With the 5Dmk2, the audio had to be converted as well. Pity it seems to be auto gain.