If you're talking about learning to use one or just wanting to try one so see if you like a FP, I'd highly recommend a disposable Pilot Varsity pen.
They can be had for around two and a half bucks at Hobby Lobby with one of their 40% coupons. These things are unreal as FP's -at least he one I got- they write perfectly, always start immediately, and I've abused it seriously by leaving it unused for a month or more, running it trough the washing machine (no leaking out of the cap and only a tiny bit if ink to be rinsed from it) and they even have a following of people that have figured out various ways to refill them and they hold a lot of ink to start with.
Or if you want to do cartridge or refillable the Pilot 78G is fancier, an excellent performer, and can be had for 10-12 bucks on Ebay if you watch for them.
If you're going to make a kit FP to try it to see if you like using them, I'd go for one of the less expensive ones first, no sense in paying a lot for something you end up not liking. Ink is important, if the cheapo cartridge ink doesn't please you or the pen works poorly, try some better ink before giving up on it.