Not hard to do at all. You will need a link cable to computer (for handheld appx $35.00 with 12v for handheld) a program for computer (I like capn's but is expensive $499 for the newer version though is easy to find an older version for free) charts can be found for free for most of the US at
Free Boating Charts, though carib charts cost $, though arent all that bad. Depending on your GPS and radar, you can link them together and have the output sent directly to the comp and integrated through CAPNs prog. Your VHF can be set up also for emergency transmissions by linking it to the GPS. These have to be newer electronics, though. Maybe past 5-6 years at max I would guess. As far as your setup goes, take into account how much you can afford for AMPs, whether you have a generator or run your engine most of the time etc, I would go for a crappy dedicated laptop with a DVD ROM, for your normal needs and reserve the 32" for entertainment while in port or have the engine running. AMPs go very fast when running home oriented electronics. A power inverter can be used to supply AC from DC or even the other way around. Bring those paper charts, as they can save your life. Power outages happen, though paper, or better yet waterproof, charts do not. Know how to shoot objects as a backup along with Celnav just to be extra safe.