what would it depend on? if the laptop has SATA?
In addition to making sure your laptop has SATA, you have to also make sure it can handle the 12.5 mm height of the hard drive
inside the enclosure.
For example, my laptop can only accommodate 9.5 mm drives, thus I would not be able to use this drive internally.
This is what's listed under the product specs for the Western Digital Scorpio Blue internal laptop HD: "1 TB models are 12.5 mm high and may not be compatible with all notebook systems. Consult system specifications for maximum allowable drive height before attempting to install."
I know you asked about the Toshiba, but as of right now, the max capacity for 9.5 mm hard drives is 750 GB - also a WD Scorpio Blue. Currently $110 at NewEgg.
Keep in mind that all of the above are 5400RPM. In my opinion, you're better off with a 7200 RPM. However the max capacity for those is 500GB.
Hope this helps,