I bought an OKI 5100 (I believe there is a newer model now). Fairly inexpensive, probably even cheaper now.
It is ethernet ready and I use it off a 100baseT hub. Quality is really good and it doesn't generally require much attention, just sits there churning out prints from desktop and 2 laptops.
Whatever you buy, check the specified content of your initial supplied toner cartridges carefully - most colour lasers come with only 30% full cartridges - it's a complete scam to force you into buying a new set of toner cartridges soon after you get the printer. Oki full 'rainbow' set of toner cartridges (100% full!) is about 225+VAT but lasts a long time even with kids using it.
BW