One word of caution when daisy chaining switches - keep the number of inline switches to fewer than 3. In other words, this:
Router -- switch -- switch -- device
is ok, but this:
Router -- switch -- switch -- switch -- device
may not be.
If the layout of your rooms / network / gear allows for it, the best way to add multiple switches is (and I hope this looks right):
Router -- switch -- device
| ---- switch -- device
(In other words, if your router has 2 or more ethernet ports, plug a single switch into each port on the router, rather than daisy chaining them.)
And as for Gigabit, it really is something to consider, especially if you do any kind of video streaming on your network.