what about gdansk, poznan, lodz, wroclaw??
Gdansk and Poznan are about the same - there's plenty of work available for those that know what they're talking about. However, the money isn't the greatest.
Lódż - less popular than Poznan and Gdansk, but there's plenty of work there for even inexperienced types.
Wrocław - forget it. It's overcrowded with people who think that it's the next Krakow.
Of course, it all depends on your nationality. An EU citizen can find work easily. A non-EU citizen will find it much more difficult.