It's difficult to recommend charging systems to new flyers, especially w/o fully understanding their requirements.
You can get a new flyer into a charger that will
probably meet their needs for about 25 bucks.
The typical 50w 4 button multi-chemistry charger is almost always what I recommend.
Part of the problem is not knowing the commitment level for the new flyer.
Your typical 4 button charger may be all some people will ever need and in fact, I did fine with two of these and a couple of parallel boards for a long time
I charge packs for three different flyers, but we all fly 3s.
Now I have a four channel 400w (100w per channel) charger that does everything I need it to do and I can usually charge all of my packs over the course of an evening. If I ever get into bigger packs and highr voltages, I'll probably want something with a 24v input and higher wattage.
Research and education will help you find something that will best meet your needs.
Do your research and charge safely!
This is how I do it:
http://www.flitetest.com/articles/ninja-quick-tip-charging-ninja-style