Laptop looks ok for a cheap one. Wouldn't use it for graphic intensive stuff though.
Also 'sound memory' - Do you mean memory (RAM) or do you mean a sound card? I wouldn't worry about that too much, you can get a better one to go in the pc card slot in the side of the laptop (PCMCIA slot). For example:
http://www.savastore.com/productinfo/product.aspx?catalog_name=Savastore&product_id=10279312&pid=45&tid=279