Compass and Charts

[lorenzo b]

So I'm doing the electronics on my boat,a 63 ft steel shrimp boat conversion, and I'm looking at compasses. Some books stress how important they are and say to get the best you can afford, but with the redundancy of electronic compasses and GPS systems, how often do you really rely on a free-standing compass? I've got a Raymarine E120 with a Coursemaster autopilot.
What do you guys use and recommend?
Also, how detailed are your paper charts And how often do you pull them out?
Sorry about these dumb questions, but I'm a few days from pushing off and know nothing.
Don't worry, she's real slow and loud, a DD with straight exhaust, so I won't be sneaking up on you. You'll hear me for a good hour before I come over the horizon.