Alex, you're probably going to need to provide more info...
Are you looking for an upper-end camera, or lower-end?
For example, Amazon can provide you a brand-new K200D with 18-55mm lens for $555
If a small, entry-level SLR will suffice, the K2000D outfit includes the 18-55 lens, and the AF-200FG flash for under $600
Don't forget to check out the marketplace here on PentaxForums, as well:
link to Marketplace
Tony