I love Atari!
Got bitten by the bug in '82 when my uncle bought an 800 with Star Raiders, had my first Atari a 400 and 410 in June '83, progressed to an 800 XL and 1050 in '85.
Today? My main machines are my stock 800, 1200XL with Atarimax 32-in-1 upgrade and my 800XL with Ultimate 1Mb upgrade and built-in SIO2SD. Also in my collection I have a SIO2SD-XL conversion by Flashjazzcat, SIO2PC (again, FJC!), 1050 Happy drive, countless recorders (love my XC 11!), peripherals, etc etc.
I was never into the hardware/serious programming side, but know enough to get me by!
My all-time faves are Sea Dragon, Shamus, Zeppelin (well, anything Synapse really but this is the best!) Pastfinder and Crypts of Terror.