I'm sure others will chime in with great websites, I know they are out there.
There are many different types of cloth diapers. The cheapest way to go is prefolds with covers. But since Kylie is already 6 months, she is getting to the age that most people don't really like prefolds anymore (most people like them for when baby is little but not as much when baby is older).
Other options are fitteds plus a cover, pocket diapers or all-in-ones. Those will all be more pricey. You can buy them used here on JM and on diaperswappers.
There is also a program called Miracle Diapers. You can apply to be given cloth diapers, its for people who have a hard time affording the start up costs. That might be a good way to get started and then it might help you decide which kinds you like so that you can figure out what you want to buy. There are also a few stores that have a "try it out" type program where they send you a variety of diapers for cheap, but then you pay to send them all back or you can choose to buy any that you want to keep. I don't remember which stores have this.
Here's the miracle diaper website.
Cloth Diaper Foundation