A long shot: Poland Hotels + TXL airport hotel.

This is a long shot if there ever was one but knowing the vast travel experience of VFers I would not be surprised if someone can provide me with some comprehensive information.
I have been invited to a wedding in Poznan, Poland at the start of June. After a bit of research it seems my cheapest option (ignoring the likes of Wizz and the god damn awful airline which now charges for the use of the loo) is to fly on the new LHR-TXL service from LH. Then hire a car and drive across to Poznan.
I need a hotel for two nights in Berlin. One night at TXL and the other night can either be back at TXL or in Berlin. Any suggestions. The best I can seem to find near to TXL is a Novotel.
I then need a hotel for one night in Poznan. My eyes lit up when I found that Sheraton have a property in Poznan but having looked at the prices (more expensive than one of the many W Hotels in NYC for a night) I think I want somewhere cheaper.
So V-Flyers does anyone have any recommendations for TXL and more importantly (but pretty unlikely I feel) for Poznan.
I have been invited to a wedding in Poznan, Poland at the start of June. After a bit of research it seems my cheapest option (ignoring the likes of Wizz and the god damn awful airline which now charges for the use of the loo) is to fly on the new LHR-TXL service from LH. Then hire a car and drive across to Poznan.
I need a hotel for two nights in Berlin. One night at TXL and the other night can either be back at TXL or in Berlin. Any suggestions. The best I can seem to find near to TXL is a Novotel.
I then need a hotel for one night in Poznan. My eyes lit up when I found that Sheraton have a property in Poznan but having looked at the prices (more expensive than one of the many W Hotels in NYC for a night) I think I want somewhere cheaper.
So V-Flyers does anyone have any recommendations for TXL and more importantly (but pretty unlikely I feel) for Poznan.