Gor my Pi and connected it up with stuff I had around, a phone charger, spare keyboard and mouse, using the USB hub in my PC monitor and with the Pi connected to an old TV. Plugged in a USB wireless adpater and it all worked great.
My office is full of retro, 48K Spectrum, Atari ST, Falcon, Amiga 1200, Atari Lynx, Playstation with loads of SW and magazines, so first thing I did was load Fuse the spectrum emulator, works great, with 1,000's of games downloadable from World of Spectrum. Next ScummVM and loaded up Beneath a Steel Sky, halfway through it already !
Connected a USB hard drive, can now access it from any PC, anywhere.
Next thing to do is get a relay module from eBay and try some GPIO stuff thats controlled from my mobile phone.
This is what I love about the Pi, exploring, There's always something new to play around with. Whats next ????!!!!!!!!