I'm thinking of getting a Holga 120N for fun?

Here ya go! Flashes and the 35mm adapter and just about anything else you could want for your Holga.

http://www.freestylephoto.biz/holga.php

I use a Holga 120FN, (built in flash). I suggest you get this camera rather than the original model not because of the flash, but because it has foam to back up the film spools plus a bulb ability for long exposures. It also comes with a good mask for the 120 film sizes. The 120FN just addresses many of the nagging problems with the original Holga... but make no mistake, it is still a VERY primitive camera. However, I have taken some of my best photos with this cheap piece of plastic. I have sold them out of art galleries and will have one published in Light Leaks magazine.

Frankly, I don't know why you would want to use 35mm film in it. That is defeating much of the purpose of the camera. The 6 x 6 medium format film is almost 4 times the size of 35mm, with the resultant increase in detail and large print options. With the Holga, you need all the help you can get with photo quality. No use shooting yourself in the foot right off the bat with 35mm film.

I have always thought the Holga lends itself to black and white photography much more than color. I use Ilford XP2 ISO 400 film which is C41 process. I have also used Ilford HP5, but I see little difference between the two films. Might as well use the XP2 for easier processing.

Here is my Holga gallery if you want to take a look:

http://www.pbase.com/s_parrott/holga&page=all

Have fun with it, but remember, the Holga can also be a "giant killer" when it comes to photos if you really work with it!

steve