there is no such thing as a "fighter's house".  there is a "fighter's room", a "fighter's flat", and a "fighter's mansion".  regardless of which you have, the "thief's den" i believe has the largest storage capacity, at 250kg.

regardless of if you switch or not, you will eventually find that even 250kg isn't enough space, if you plan to store things.  but beware, unless you can buy at least lvl 400-500 traps (if not 600-700), robbers will hit you from time to time.  even a lvl 800 has been broken into once.  once 250kg isn't enough (or if you'd rather have benefits from a fighter or mage house, and their capacities aren't enough), extra houseparts are the only option.  look up the recipe on larkinorguide.com  they're relatively expensive to make, for each only adding 1kg.  but if you're made of money, and just want a place to store things (apart from the market), it's an option.

and to answer your other question... stuff does transfer from one house to another.  even traps transfer, i believe.  what i haven't tried is going from a 3-trap house to a 2-trap... i expect you'd lose your 3rd trap.  and i also haven't tried going from a full 250kg house to a 170kg (or anything else lower) house... i don't know what you'd end up losing, but i'd bet you'd lose some stuff... who knows what though.  (time for sandy or someone else to test, who likes to test things?)

hope these answered helped, and didn't put you to sleep from being too long.

--jason

*yawn*  LOL

If the goods in your house will not fit into the new one then it doesn't let you move house :D

If you move to a smaller house, you have to kill a trap first :D

and the fun part....

If you have been robbed and not yet gone home, then buying a new house will reset it, allowing your home to be robbed twice, and leaving the first robber completely free of reprisals :D:D:D

thanks v... no need to test stuff now.
--jason