Wow, that was quick.
The laptop is a Toshiba satellite (I'm not too sure of the model number at the moment), running WIN 7 home premium. and the new HDD is a Toshiba SATA MK2035GSS. 250GB
The HDD fitted in the laptop is also a Toshiba SATA and I think it's a 500GB capacity. (although only about 80GB is used)