SSD driver for Inspiron 1545

Hi Gurus,

I have an 4-years old Dell laptop Inspiron 1545, and I plan to buy a SSD drive to replace the harddisk. My questions are:

1. Will Inspiron 1545 support SATA II or SATA III?

2. Any one has experience to install Samsung ssd 840 120GB SSD drive on it? I found some forums talk about this SSD driver, but not sure if it can be detected by this old laptop.

Bill