Just purchased a Dell Studio 1535 (from Staples) and wanted to add Bluetooth receiver to it. Since this was an in-store purchase, I was not able to select this. So, long of the short of it, can I add the Bluetooth module to the new computer? I am also planning on adding the backlit keyboard, but that looks pretty straight forward.

It depends on the configuration of your laptop. I found this information in the service manual for Dell Studio 1535/1536 in the “Wireless Mini-Card” category.
Quote from the manual: Your computer supports three Mini-Card slots:
* Two Full Mini-Card slots – for WWAN, WPAN, UWB, Bluetooth
* One Half Mini-Card slot – for WLAN
Depending on the configuration of your system, one or more of the Mini-Cards might not be present. Apparently, in order to find out if your laptop has this slot you’ll have to remove the base cover.

If you find the slot, you’ll have to use Dell Wireless 370 Bluetooth Minicard. I think that’s the right card because it’s mentioned in the list of applications available for downloads for Dell Studio 1535 laptop.