even when dry hopping i can forget the secondary?
Yes. Its something I only recently learned (I am of the wise old experience of 3 bottled brews and 1 done fermenting and aging and 1 still fermenting).
A lot of what I have read has gone around an about, but the general consensus seems to be you only need a secondary if
A) You are doing a really high gravity beer, sometimes it makes sense to move it of the trub after a few weeks (yeast and sediment cake that forms at the bottom of the primary)...but isn't really necessary according to many.
B) You are adding fruit (because you don't necessarily want it all dropping down in to the trub, and you are probably adding a BUNCH, so you can't just stick it in a hop bag)
C) For some reason you need to slightly accelerate clarifying things (debatable?)
You can dry hop right in the primary. A bucket makes it a little more difficult to do, but you can pop the lid and either toss the hops right in, or better use a hop bag, tie a string to it and carefully close the bucket lid over the string.
I am personally inclined to start just using my carboys for primary. It is fun to watch the fermentation work. My latest, Middle English Honey Brown Ale, is my first right in the carboy. A 3G one with a 2.5G batch. Its right at the tale end of high Krausen now on day 3 and fermentation is just starting to slow down. Between the hypnotic bubbling of the airlock and watching the foaming and occasional slow drop of some sediment from the krausen I could sit there all day.
I do need to get my carboys soon. I have the bucket and 6G carboy that came in my kit and I recently bought a 3G better bottle plastic carboy for smaller batches. I think I need another 3G and a 6G for my future amitious plans. I haven't done anything over 1.062 original gravity yet, but I have several very high gravity beers planned soon and as long as they are going to need to sit in the fermenters, I probably will need to rack one or more of them to secondaries at some point to free up the bucket (and both are likely to be 5 gallon batches).