British photographer looking for cheap accomodation in Sofia

I will be moving to Sofia at the end of Decemeber and looking for a place to live

I prefer a single apartment but will also consider sharing given my budget is quite low-really I am open to options.

Location is not important as long as it has good transport connections, it can be short term untill I find something more suitable.

Any suggestions and advice gratfully received since am not having much luck looking on-line so far in English and clearly this would be an easier task speaking Bulgarian once inside Sofia :)

Thanks in advance