Here's a quick shot of my setup after I got my 24" iMac today.
The iMac is replacing a Hackintosh (which itself replaced a 20" iMac a little over a year ago), which is currently hooked up to the 20" Dell behind the far MBP; I'm currently pulling my files off of it over the network. Going to take 12+ hours...even with a gigabit network, 700GB is a lot.
The iMac is a refurb 2.8 GHz model. I got it for $1200, then as soon as I got it today I ripped it apart and popped in a Western Digital 1TB drive I bought from NewEgg for $90 and put in 4GB of RAM I got for $25 from Amazon. All in all, a pretty dang nice machine for a little over $1300. I'm quite happy with it so far. Way better than the 20" iMac I used to have.
Attached to the iMac is my Dell 2407wfp; then there's the two MacBook Pros (both belong to work). The closed one in the foreground is my outgoing one, a 2.2 GHz glossy-screen 100GB maxed out with 3GB of RAM. Since I'm buddy-buddy with the IT guy, I got a "stealth upgrade" out of cycle to the newer MBP (the open one), which is a 2.4GHz LED-backlit model with a 160GB drive and 4GB of RAM. I need my 4GB, baby.
Not pictured: the D-Link NAS I also bought this week (will be 1.5TB), my wife's Blackbook, or the Mac Mini attached to the plasma TV running Plex.