Hello there,
As you see I wanna buy a low-cost fpga kit. My main purpose is to design a simple SoC. For example to take some components like cpu= OR1200, LEON 2 bus= AHB,wishbone and some other modules in verilog (or vhdl) and connect them and run some simple examples.Also I want to improve my knowledge on Synthesis. Please help me.

Thnx

Have you seen the OpenRISC development board? http://opencores.org/shop,item,9
It has many different I/O connectors and plenty of room for an OpenRISC and extra peripherals

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Olof Kindgren
______________________________________________
ORSoC
Website: www.orsoc.se
Email: olof.kindgren@orsoc.se
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FPGA, ASIC, DSP - embedded SoC design

You can have a look at this one.
http://www.elecfreaks.com/store/altera-cycloneii-ep2c5t144-fpga-mini-development-board-p-132.html?zenid=ih60vgqdioml4vhhb0oqtshlh5

Or this one:

http://www.aessent.com/products/aes220-minimodule.html

Sébastien

check below link
http://www.digilentinc.com/Products/Detail.cfm?Prod=S3BOARD