Thanks Richard,
I've been mailing Garry during today as well and his product photos that he forwarded look to be the sort of thing I want to do. He suggested 3 lights plus appropriate modifiers...
Examples - anything from white background, through closeups showing detailing to set pieces like:
http://www.kaleidoscope.co.uk/Zuric...llpartial&Ns=P_Colour|0||P_Size|0&Ntk=PRIMARY
Oh wow! Nothing tricky then! That's a three-in-one shot as described above

with plenty of styling work thrown in. I used to try that sort of thing as a student (all the gear, no idea) and the results were, erm, not like that... Sharp, nicely composed, perfect exposure - but rubbish!
But don't be daunted. You'll get there if you put the effort in. It's much less about the equipment, and much more how you use it. Understand light, read plenty, look at pictures and anlayse them, know what the different tools do.
Three lights is good, you'll need them eventually and the price is probably good, but don't skimp on the modifiers. Garry's suggestion of grids is good for this kind of thing, lots more control. Modifiers are both about putting the right kind of light where you want it, and nowhere else.
I would say this though - always start with one light and get that right first. The main subject light always does most of the work, sometimes all of it, and add effect lights one at a time, building carefully. Generally less is more, and conflicting shadows look terrible. Bear in mind that with this kind of work a variety of reflectors, from four feet wide to four inches, are like extra lights - silver, white and black too. Flags, gobos, cookies an' all that too.
Also I would get heads with proportional modelling lights. Others may disagree but I think that's a drawback with the Lencarta Smartflashes if those are what you're looking at. Modelling lights are not an absolute guide, but they're a good stear and if your main light is at one setting and your other lights are two or three stops down but the modelling lights are all on full, then it will take you much longer to get the balance right.
Keep us posted
Edit: get a boom, with a nice (rectangular?) gridded softbox

For larger subjects, that would probably be your main light for most things. Okay, the light is maybe subjective, but the boom will be very useful.