So many different dehumidifiers out there- which to buy?

After such a wet winter this year and the constant battle to fight moisture, I have decided that before next winter comes, I want to purchase a dehumidifier.  I am lost with so  many different makes and models out there.  I know several of you have one.  Can you recommend a unit that will control moisture in a 2 bedroom flat?

Have you tried/are you able to crack your windows open just a tiny bit--maybe 1/4 inch?  We used to have terrible problems with condensation on our windows, but once we cracked them open it solved the problem immediately.  I was amazed.  Before that, we had a dehumidifier running all day long and making no difference.  I can't help you much with dehumidifier brands, because we just borrowed one from DH's parents, but try the window thing first, it could save you some money in electricity bills. 

We just bought the cheapest one with the biggest container from Argos.  It worked pretty well. 

Have you tried/are you able to crack your windows open just a tiny bit--maybe 1/4 inch?  We used to have terrible problems with condensation on our windows, but once we cracked them open it solved the problem immediately.  I was amazed.  Before that, we had a dehumidifier running all day long and making no difference.  I can't help you much with dehumidifier brands, because we just borrowed one from DH's parents, but try the window thing first, it could save you some money in electricity bills. 

I kept the windows cracked all winter.  It didn't make much difference.  Everyday it was a battle.  Especially in the kitchen.  I really want to avoid that next year.  I know someone posted about buying one and they were very pleased with it's performance.  Anyone have any good experiences with one?

We got this one, based on the customer reviews:

http://www.argos.co.uk/static/Product/partNumber/4250203/c_1/1|category_root|Home+and+furniture|14417894/c_2/3|15701253|Dehumidifiers+and+air+treatment|14418335/c_3/4|cat_14418335|Dehumidifiers|14418336.htm

We tend to move it, as needed, from one floor to another.  It works fine, but you might want something cheaper?

We got this one, based on the customer reviews:

http://www.argos.co.uk/static/Product/partNumber/4250203/c_1/1|category_root|Home+and+furniture|14417894/c_2/3|15701253|Dehumidifiers+and+air+treatment|14418335/c_3/4|cat_14418335|Dehumidifiers|14418336.htm

We tend to move it, as needed, from one floor to another.  It works fine, but you might want something cheaper?

This is the one that we bought in 2008 when we started having damp problems and over a year later it's still running like a champ and does the job in our 1 bed flat just fine. Ours stays stationary in our bedroom and its even quiet enough to leave it on when we sleep.

This is ours, cheap and cheerful.  It does a good job of our 1 bedroom flat (full sub-ground floor of a terraced home, so not a small 1 bed).  On some of the dampest days, which incidentally seem to happen when it stops raining after days of rain, it lags a bit and I might need to wipe things down in the morning or maybe at night. But that's it, and it beats doing it over and over again.  I would not go without it.  Most days we run it half a day, but I am looking forward to shutting it down except for the most humid days this summer.  We've been running it the past few days at winter levels, but it's really been bad the past few weeks in regards to rain.

I use it instead of running a tumble dryer and it works great.

ETA: Our flat has vents in every room which are always open, and they don't seem to help at all.  Maybe it would be worse if we didn't have them or maybe our flat is just a bit worse because it's effectively the basement, but we had a whole wall dripping in water the day before we bought our dehumidifier.  I don't think any amount of window cracking would help that.  There's been no sign of that or mold, and as I said, maybe on the dampest day light condensation on the windows in the morning.