You don't have to shell out for an enlarger these days. Do a little poking around on craigslist and with patience, you can find a GOOD one for free or nearly free. Look for a Beseler 45 series or an Omega D2/D3/D4. They're big and bulky, which is why they're often given away. They can be found for under $100, again with patience, or you can find a smaller but still robust enlarger like a Beseler 23 series if space/weight are an issue.