Dell PowerConnect switches are good, I haven't run into anything unexpected.

I have had some issues with a Netgear Gig siwtch (don't know the exact
model). When setting up a Link Aggregation Group with a Dell switch,
the end result was a non functioning network until the LAG group was
removed. LAG groups between the Dell switch and another Dell switch as
well as the Dell switch and Cisco switch work fine.

Figure out if you need/want a Layer 2 or Layer 3 switch. If you decide
layer 2, you have to pick between managed and unmanaged. From what I
can tell, you're looking for at least a Layer 2 Managed switch.

Most recent managed switches seem to have a web and CLI config mode.
Also if you're looking for features that your clients may be using,
look for a switch that will do https and ssh for the management and
allows you to disable http and telnet. These features may be required
for various security requirements.

-- 
Andrew S. Zbikowski | http://andy.zibnet.us
IT Outhouse Blog Thing | http://www.itouthouse.com