Samsung Ddr Sdram I Want To Add More RAM To My Desktop. Currently I Have 512 MB (2 X 256MB), Samsung Made, PC3200/200mhz DDR RAM

I want to add more RAM to my desktop. Currently I have 512 MB (2 x 256MB), Samsung made, PC3200/200mhz DDR RAM - samsung ddr sdram

I want to buy a piece of Kingston 512MHz DDR RAM PC3200/400 office. Are there any compatibility issues or other problems? Thanks
* By the way, is only interested in memory above *