The Diana was the second camera I ever used (the first was a twin lens brownie type thing). I got pretty appalling results from it, much to the annoyance of my older sister, whos' camera and film it was!
I've just bought a Holga 135BC (BC stands for Black Corners, as it has a faux vignette filter built in), for a bit of fun. It might be bad timing, though, with the big yellow giant pulling out of film manufacture!
XG-1, XD-5, XD-7, X-500, XG1n, X300, 7000i, 700si, 800si, 500si Super, 600si, Dynax 5, KM 7D, a100, a200, a300, a580. And another 600si.....