Welcome
Hi Snuglez
Welcome to AFN! ^_^
Why not pop up a "hello" over at the introductions section for a nice warm welcome from our members,
In the meantime, i'll try and help out with your questions.
I'm not sure what soils you have available to you, but plagaron and biobizz are both popular choices among indoor growers. If you have those commercially available soils in a local grow shop, try and get the "light mix" versions. Try to avoid soils with time release fertilizers - while they sound like a good idea, they take control away from you and can burn seedlings.
Germination of canna is a pretty easy process. The easiest way I've found and use is to fill a pot with some nice light soil, water it with PH adjusted water - leave for a few hours to dry a little, poke 1cm hole in the middle (with a pencil) and drop your seed in there. Spinkle some soil lightly over the top. Spray it finely, pop a humidity dome (top third of a coke bottle) over the top. Turn the lights on and leave it for 4-5 days.
Ideal temp for germination is somewhere between 75-82 Fahrenheit
Hope this helps a little
Edit: just realized you said outdoor grower - the info is still good, but i've never germinated seeds outdoors so not sure
All the best
Blue ^_^