There are a number of reputable, well-know sources of goodies for us low power radio folks. Then there are some reputable, not-so-well-known folks who don't seem to get their name out there - so I'll do it for them. First on my list is Cana Kit, a Canadian firm who offers the popular and inexpensive Universal FM Transmitter with Mic and Line Inputs, pictured here. Many more Cana transmitters here.
Next is Ocean State Electronics, or OSE, who also offer both PLL and VCO products.
So, the only question left is, "With all these options, why aren't you on the air?"