I'm thinking of converting from strobes to continuous light for almost all of my shooting. Is it suitable for a lamp suchas as this (i.e. hot) to be used with a soft box or beauty dish and if so, what type of mount does it use?
I don't see a power level knob so would I dim this with a household dimmer switch (provided it's rated for 1000w)?
In theory it's possible to put modifiers on these units, however the modifier in question *must* be rated for use with hot-lights. Most modifiers for use on strobes cannot withstand the heat from a 1000watt halogen. Great care should be exercised when using high watt halogen lights as the heat generated can easily start fires, melt plastic fixtures, damage paint, etc..
A standard household dimmer is a poor choice for controlling the output of these units, as even dimmers rated for more than 1000 watts tend to over heat (and also create flickering, etc.). There are specialized dimming units that may be used.
An alternative would be to use either flicker-free fluorescent fixtures or LED based light units. They run cool, use less power, and often include a built in output control (dimmer).