One other thing I wondered, is there any utility or anything I can run to make sure I haven't missed installing any drivers.
I believe I did all but the wireless since the laptop still isn't wanting to connect wirelessly. But it has been a bit of a daunting task for one never doing this before so want to make sure I haven't missed what is required.
None, that I know of.
Just look in the Start Menu -> Control Panel -> System -> Device Manager to see if there are any yellow exclamation points.
You should be able to use your Service Tag number located on label on bottom of your laptop to determine what your laptop's configuration is.