I have developed a PCI card base on PLX processor.
The PCI9054 is a good solution, if you are interested in high performance.
If you don't have much time buy the developer kit PCI 9054RDK-LITE
It's about 500 E.
I would recommend PCI2040 from TI. This one is the simplest PCI controller I've ever seen. Just connect some wires with minimum external components and you will get addressable bus. PC-side programming for PCI2040 is also very simple. IC by itself costs about 10$.