[Tikker]

I've got my DTVR running thru a switch

also connected is my HTPC, Hava, and xbox 360

my upstairs box is also on a switch, connected with upstairs htpc


basement always works flawlessly, but the upstairs one has issues when the htpc is on too

only difference is the upstairs switch is a netgear, downstairs is SMC

 

[Tikker]

you're always free to run more ethernet on your own

 

[Tikker]

as long as it's a decent switch, it should be fine (but yes, it's recommended that any HD box is directly connected to the 3801)