Here's a link to a cheap little mod that would look great since you got an RR fg2.
http://www.8thcivic.com/forums/showthread.php?t=27975
Also, what BTRobertson said above me is true. The greddy turbo kit is a safe bet, but I just personally don't think it's worth the money for 55 whp. The ajp kit is absolutely insane.. My best friend has an AJP stage 2 fg2 and in his words it's the fastest car he's ever owned. That's saying something pretty nice since his last three cars were 03 wrx, 04 STi, and 05 esx/sti.
pic I took of his car:
The catch is this.. DO NOT try installing the AJP kit by yourself. A lot of people have tried to and have ended up just messing things up because it's such a fickle kit. If you considering picking up the kit I would suggest contacting alljapperformance and talking to them about who they would recommend install it in your area. There are some things involved with the installation of that kit that you indefinitely need to be able to get under the car and have a decent amount of room to move around. I'm sure if you just go pop your hood and take a look you'll see what I'm talking about.. it's a rear mounted turbo, BOV is in the front left right behind the bumper, and the i/c sits so tight that it's amazing that it fits without modifying the bumper. The wastegate/dumptube fits so snug that it's crazy.. The damn thing has a 70 trim turbo.. freakin huge for a civic.
As for intake, exhaust, headers, etc. there is so much aftermarket support it's unbelievable. I would check out
http://www.corsportusa.com/ since a whole lot of people have had good experiences with them. Matter of fact, I have yet to hear about a single person having a bad experience with them.
You also may want to consider getting the hondata reflash once you've got the magical 3 (I/RH/E). I will lower your vtec point and yield you better results from your mods.
If you have any questions about specific mods (like brands, CAI vs. SRI, etc.) I would check out
http://www.8thcivic.com . There are a lot of helpful members there that know a lot about your car, not to mention someone on that site has already bought what you're looking at, no matter what it is.
My name is firmhonda over there too..