RE: Gates for stairs & Coffee table stuff??
For coffee tables, I highly recommend the wraparound kind. They work really well. What other types of corners do you have? As long as the corner isn't at toddler head level, I wouldn't worry about it too much.
The kind of gate you need really depends on your situation. While the Kidco gates ARE incredibly expensive, they provide by far the most flexibility in their application. We have invariably found them to be the only ones we can use.
If you REALLY don't want to put a gate there, you could see if you could maybe attach a gate or something like the Kidco Elongate just in front of the stairs rather than at the top of the stairs itself. But I would barricade it in some way. A toddler is FAST and will be down the stairs before you know it.
HTH,
Beth, mom to older DD (8/01) and younger DD (10/06) and always missing Leah (4/22 - 5/1/05)