I have a 10" Dob with a Telrad on the way. The search for sky charts is as overwhelming as searching for a telescope and eyepieces. The Sky Atlas 2000 looks like the cure all, especially since it is designed for use with the Telrad.
Not especially. Any charts
can be used with a Telrad -- there's nothing special about Sky
Atlas 2000.0 (SA2K) in that regard.
As far as I'm concerned, SA2K has an ideal level of detail for casual stargazing. It also divides up the sky
into nice, large, easily managed chunks. However, it's big -- physically unwieldy -- very hard to use unless you carry a table with you.
For field use, my favorite version of SA2K is the "desk" version, with black stars on a white background. Most other people agree. But a small handful prefer the "field" version, with white stars on a black background. The "deluxe" (color) version is wonderful for research during the day, but the colors don't show by red light. It's still just as readable as the "desk" version by red light, but you're paying a lot for colors that you can't see.
I prefer the unlaminated versions to the laminated versions because they're much lighter and cheaper and because I like to draw on them.
Because SA2K is so huge, many people prefer the Pocket Sky
Atlas (PSA). The PSA always seems to have just a little less detail than I would like, but its compact format is a treat to deal with. And it is very cheap. And like SA2K, the cartography is superb. PSA is so cheap and handy that it's hard to see why anybody wouldn't own one, even if it's not their primary atlas.
I also like the fact that unlike SA2K, PSA has constellation lines drawn on it. However, I drew my own constellation lines on my copy of SA2K, after which that was a non-issue.
Is there a need/use for a planisphere if you have a good chart?
Probably yes, unless you know the sky
very well. A planisphere shows you the sky
as a whole, while atlases allow you to focus in on specific constellations. But if you don't know the constellations in the first place, you may have trouble correlating the sky
to the atlas without some other aid.
Mind you, many people skip paper charts
entirely and use electronic aids instead. That's a whole 'nother subject.