That sounds great sudo! It would be a shame not to get some money even if it's not the full value. I have a few old electrical items DH might list as 'spares' - it's surprising how well it goes. I sold an old DS (erm, nintendo, not a son :o) that had a dodgy screen - which obviously I described and photographed accurately - for £20.
Clearsomespace, it's really just the amount that needs reducing, like you say it's not that the toys are detrimental - but it is utterly impossible to keep tidy. They are everywhere! The house is so tiny (officially tiny in fact, we are on the housing register at Band B because of overcrowding in their bedroom!) it's just drowning in toys. Not that I mind them being around the house - actually lots of health visitors, outreach workers etc who have visited have said how lovely it is to see toys in the living room! I just want - no, need it to be tidier. I can't keep tripping over stuff, and there is no room to play in their bedroom, or even read stories comfortably. And there are toys that they do really love but hardly get to play with because they are buried/scattered!
I can, trying hard, think of a few things they would do without. I have difficulty saying no to generous friends and have a couple of electric toys that they played with a couple of times, there are also a few cuddlies that aren't played with. But their favourite toys are generally large - train set, lego, marble run, playmobil etc. I could go through and weed out broken/tatty bits though.
This evening while DH was ironing I cleared out all 3 of my bags! (well I have 4 but DH is using my Muttley one for college :o) Totally shocking how much crap - bus tickets, mostly - was in them! I've turned them inside out to air them and feel really good about having cleaned them. In doing so I found some shoe spray so I'm going to clean my work shoes too.