wireless broadband info assistance

[internutter]

hi all

the area ive recently moved to has (according to telkom) insufficient free ports for adsl and hence im without any internet connection!

so now ive got to look at the more expensive wireless options
and im totally lost here...

telkom wireless?
mtn?
iburst?
vodacom?

are they reliable?
how good are the speeds?
and are they affordable?

any useful information/advice would be highly appreciated

thanks