Raggedstone1 is a low-cost Spartan3 FPGA based PCI development board made by Enterpoint Ltd.
Here is the product page: http://www.enterpoint.co.uk/moelbryn/raggedstone1.html

A colleague and I have the board working using the pci32tlite_oc core from opencores.org

I have written an example linux driver for it that can set hexadecimal numbers to the board's 7segment display.

Download: rs1linuxdriver.tar.gz
Compilation/Installation/Usage: here.

Version 0.0.1

Archive contains VHDL Code, ISE Webpack 7.1i Project, bit file, prom file.
Download here: rs1_7seg_pci-0.0.1.tar.gz

Note: Most Win* archivers should be able to handle .tar.gz files

After unpacking the archive, start Xilinx ISE Webpack (Version 7.1, 8.1 should also work), and open the ISE Project file via File→Open Project.
Point it to rs1pcidemo.ise in subdirectory rs1_7seg+pci-0.0.1/project/rs1pcidemo.

The supplied PROM file pci_7seg.mcs can be programmed directly into the XCF02S Prom onboard the Raggedstone1.

I tested the code in two computers:

1. an old P75 with a PCI/ISA riser card. It didn't work there, the computer wouldn't even boot.
2. an PIII 700 with an i810 chipset. It works without problems :)

Oh, BTW, the board is currently using a PCI Vendor ID from Altera. We haven't changed it yet since we downloaded the core from opencores.org

Under Linux, the board can be identified by looking at /proc/pci:

Bus  1, device  10, function  0:
  Bridge: PCI device 1172:0100 (Altera Corporation) (rev 130).
    IRQ 9.
    Non-prefetchable 32 bit memory at 0xd4000000 [0xd5ffffff].