if you've got a smart phone there are a lot of free camera apps that actually do REALLY good lomo style photos (camera360 for android being one of them). of course, it's not going to be full professional results but they're surprisingly good quality on my droid2

i always wanted a lomo but there are non near my area and my parents wont let me,heres what i did:
1.use my dads old snap and shoot camera
2.get photoshop cs4
3.go crazy with effects.

If you're near a city that has a Lomography STORE, they offer classes for cheap/free and those can be really helpful. They usually loan out a lomo camera for the classes too!

http://microsites.lomography.com/stores/gallery-stores/losangeles (Check on the right side under upcoming to see classes in LA)

Also you can put a colored gel filter over your flash to create colored photos. It's cheap and fun.

Well, the way I see it, you have 2 ways to achieve the effects you seek (link), one being to use a filter or specialty lens, but the cheaper way if you want a variety of different types of shots, is to take a wider angle shot than you need then either use Photoshop (if you have it) or GIMP (which is without cost), or some similar method to achieve your effects (this is, of course, with digital pictures only). If using film, you would need the filters / lens.