iv got a real old 35mm SLR here somewhere, made in the USSR (yes thats what it says on the bottom) I used to have some fun with it but could never get a really sharp shot, probably dirty or needing a service or sommit.
Chances are its a Zenith. Not the best cameras by a long way.
Thats the boy.. POS then lol
Rubbish, the Zenits are a light tight box like any other camera of that era. Some of the Russian lenses are ok, some of them are awful, some are direct copys of Leica and Zeiss designs and are actually quite good. Stick a Japanese Pentax 50mm Takumar lens on that lovely old M42 mount and the only limit is the photographer. Some people (myself included) are using adaptors to put M42 lenses on modern DSLRs simply because the quality of (some of) these old lenses is spectacular.
Film cameras are exactly as good as the lens you put on the front and the film you put in the back, no more, no less. Thereafter its up to you.
As to the OM-10, I think you paid on the high side of a fair price but it should serve you well as an introduction to SLR and a backup body once you get your DSLR. Since you are going Canon you cant use old lenses anyway so it doesnt matter that the OM series is long dead, and will actually make any other accessorys you may want in the meantime cheaper.
Id look at somewhere like Directfoto for developing while you learn, every film you send them they send you a free (but cheap) unexposed one back. Keeps film costs down while you get your head round things and the printing quality isnt bad either.