It doesn't sound like you know you need 10G, so I wouldn't bother personally, and stick with the 1G stuff.
I've gone through a similar set of choices recently, really considered a single switch for it all, but bought stuff second hand through the usual channels. I have an unusual house layout, so think its better to the system onto 2 areas.
For upstairs / NAS / Server part:
- I got a netgear GS724Tv2 for ~ £15 (plus postage), which gives me the bulk of non-poe swtiching for NAS, server, office, etc, has 2 sfp ports, and is managable.
- Added to that I got a netgear GS510TP for the POE stuff. Again, has 2sfp ports and is manageable. ~ £75
For downstairs / broadband router / TV area
- Netgear GS110TP ~ £50, POE, 2sfp ports and managed.
- I'll likely add a small switch at the TV itself which has sfp as well ( TBD ).
So ignoring cabling costs, thats my switching covered for ~ £150ish
As for cabling, I chose items that had sfp, and will install 1G modules to link upstairs, downstairs and the TV area using single mode fibre cable. Reason being long term upgradability. When it comes to going faster than 1G, I'll be able to drop in newer switches and modules, but leave the fibre in place, knowing as single mode its capable of handling much faster data rates.
Point is, you can save a lot going second hand, and splitting the system can end up with more capability.