Funky is right, for almost everything you are going to want bright, diffuse lighting. The best way to do that without 2,00 watts of halogen flood lighting is with on off-camera flash or studio strobe. Flashes are going to be easier to work with especially if the products are small. I would verify with the client what look they're going for. If they want a "Sharper Image this is what it looks like on your desk at work" image then you have a tougher job of balancing light. If they want a "Amazon.com everything on a white background" image then a shoot-through dome might be your best bet.
Example of a dome/tent: http://www.bhphotovideo.com/c/product/501360-REG/Westcott_300_DigiTent_30_.html
Off-camera flash might be a little beyond the reach of this one project, but if you're willing to make the investment in a couple of flashes (~$100/ea) a wireless trigger set (~$50) and the dome (~$60), then you'll have a portable kit that can go everywhere you do and set-up in minutes. You'll also be able to use the flashes for other stuff like executive portraits (with umbrellas and stands).
So, I encourage you to seriously consider buying some gear. As you can already see, clients, once they know they can trust you, want you to do other things for them. Having that ability and flexibility is a real plus.
And more wireless receivers 
