Rust in some places can be bad and while some can be fixed easily, it depends on where and how much. It could mean the investment in repairs may not be worth it. That aside, congratulations on having a project car! And i hope your ready for it cuz sometimes you want a nice project car and it ends up being more project then you meant to handle. LoL Most things can be replaced using oem parts for quality. Do that for your bushings and ball joint unless you plan to use a camber kit.
You'll always want to compare prices and quality as well as question both. Theres too much advice to be given at one time to a beginner so take your time, familiarize yourself with your car from the ground up and bumper to bumper, learn what things do and how they do them, take the time to learn basic maintenance and tune up yourself and try to do things properly the first time or do it twice.
Feel free to ask questions as you come across them here but some of the best advice given time and time again is learn to search whether its on this site, the next or gewgle itself. You are likely not to be asking a unique question and its been discussed many times across the web. Ill throw in a bunch of links to get you started and you can always reference back to them.
I also highly recommend reading through the members build threads. You will see all the same and different things people do, parts they buy and how they look. Will give you ideas of your own.
http://honda-tech.com/showthread.php?t=2306055 - general information, specs + links
http://www.team-integra.net/forum/blogs/ - Team-integra.net articles section has a ton of great info, diy, and guides in the articles section alone
Oh and if you truely want to work on your car yourself, pick up a service manual and it'll come in handy lots.