"leave the PCs the other side of the switch with cabled connections (mostly for speed benefits)." When you add wireless to any connection, the speed will be the wireless speed. Any speed benefits on wired will revert to the wireless speed. Why do you need a switch if the other PCs are wireless. Just use the wireless router. This will solve all your concerns. You'll not get wired speeds, but you'll remove cables and a "not needed" device.
I have a small home network. It was all wired and, after having a wireless adsl modem/router installed it is still wired through the new modem. One computer sits very close to the modem, so it uses a short wired connection. The others are on a different floor, connected by a longish (for home) cable to the switch. If possible, I want to do a wireless connection from the router to my switch (so doing away with the unsightly cabling), but I want to leave the PCs the other side of the switch with cabled connections (mostly for speed benefits).
I want to spend as little as possible. I wondered if there is anything I can do to give my switch wireless capacity - a plug in wireless transmitter of some sort? If not, what is the cheapest solution to replacing the switch with another which allows both wired and wireless connectivity to it? As it's for home, I'm looking for a simple, aesthetically neat solution. Recommendations of products would be appreciated.