Greetings Starfighter!
(Yes, I used that on purpose since there is an Atari 8-bit game that will run on your 'new' 130XE from the movie "The Last Starfighter" which really shows you can do a lot with 8-bits!)
Although I see the utility of the SIO2PC my esteemed colleage mentioned above, I prefer to be 100% authentic. Grab a 1050 disk drive or two (from Ebay or another auction site) and get real copies of some games. I love hearing the audio over the tv or monitor of the data being transferred off a 5.25" floppy disk. Note that the 1050 is in the black & white XL series color scheme, if you want a gray drive to match your 130 XE better, see if you can find an XF551 drive.
Another great example of 8-bit power is River Raid. Also the 8-bit Pac-Man looks exactly like the arcade, way better looking than the 2600 version. (Okay I admit the 'sounds' from the 2600 version are cool.)
Enjoy!
- geoff76