You're very welcome.
Again, the only thing you have to be concerned about is the power supply and the motherboard.
And again, perhaps a bios upgrade if needed, that is, if you install a larger hard drive and the bios wont see the full size of the hard drive, then you would have to go to Dells website and download and install the latest bios there. Maybe you or someone already did, so you would have to look at bootup and see the name of the bios there, the version, all the big long numbers and the date of it, see how it compares with any bios that is listed at dell website for this computer. But only do that if you really need to!
Good luck, and any help you need, this is the place. These people here have to be the best in the world and i really mean that. On top of them having so much knowledge, they are polite as well, something you dont see on other forums!
You are in the right place for sure.
Good advice + great people = tek-tips