I am looking at doing a trip to NRG from May 20th to the 30th. I am wondering from someone familiar with the area if this would be a good time to go. Also I am wondering anything special I should know about planning my trip (places to avoid, where to camp, etc).
This is actually a fantastic time to go, especially considering that it is during right the New River Rendevouz, which is a great opportunity to get to know the climbing in the NRG. Even if you don't attend any of the events, you'll probably run into a lot of climbers. You can find more information here
In terms of camping, there are currently a number of options, with Roger's probably being the most popular (at least until the AAC opens up their campground in the near future). I can't really think of any areas to outright avoid, although you may find a number of the more accessible crags to be quite busy on weekends with large groups top-roping many of the classics, most notably in the bridge area crags and the Junkyard walls. I would also suggest buying the new Mike Williams guide. If you have any questions as to specific areas to hit up, have at it! Hope you enjoy it!