The subject seems burning, so I think this thread should be sticky.

Briefly, there are no dialects and noticeable regional accents in Russian. Russian is a uniform language, and the whole huge Russia speaks the same standard language. However impossible it sounds to you foreigners, that's how it is. There are some threads about the subject worth to be read before issuing:

viewtopic.php?f=1&t=19194
viewtopic.php?f=6&t=15355