do not use the cheapo foam rollers with BIN, they just swell, doubling in size and become floppy before eventually falling apart.
I too second Steve with the Wooster mini rollers, I have never had any problems with them and BIN. The only downside is that they will not fit the more common mini rollers and are difficult to buy locally here in West London.
I used to use meths but found that it wouldn't soften the brushes once the BIN had hardened and I was left with the problem of disposing of the meths after. Now I only ever clean brushes and rollers used in BIN with household ammonia. It does smell but as it is alkali it breaks the paint down rather than just diluting it. I just use an old plastic milk bottle and leave it outside. After a day or so the ammonia has evaporated leaving water with powered paint in the bottom which can be poured down the sink with no mess.
Being lazy, I often put the BIN brushes in a plastic bag until the next day, they do become stiff over night but soften again once you start to use them. On occasion I have forgotten about them and left them for a week, the ammonia still does its job though.
I guess that you could suspend them in 100% alcohol if you wanted to but its pretty flammable stuff. You can also use it to ****** the drying time but it is pretty expensive to buy in small quantities (you need to ask for denatured alcohol which has bad stuff added to prevent you from drinking it).
With regard to brushes, the best are all American, as suggested by DCDEC
Steve mentioned Floetrol, it is a must have additive that aids flow and extends your working window. There are other brands that might be cheaper such as XIM
http://www.ximbonder.com/products.asp?id=41
Another must have when working with oil based paints is Owatrol but it is quite expensive, you might be able to experiment with your own mix of linseed oil and turps