What other brands are available in Poland?
The Samsung 470 Series, SATA 2, 3Gb/s solid state drives are an excellent choice. There have not been any major problems or major issues with 470 Series. Samsung makes ssd's that are very reliable and stable.
Here is a link to the ssd database:http://www.johnnylucky.org/data-storage/ssd-database.html
Scroll down to the Samsung section or any other brand you are interested in and follow the links to the technical reviews.