Home Screen: Clock widget, 8 apps (Maps, Internet, Market, Camera, Messages, K-9 Mail, Calendar, People)
1st Right: News widget (full screen)
1st Left: HTC Calender widget (full screen, not the monthly one)
2nd Right: People widget (full screen, 9 favourite contacts)
2nd Left: Wifi/Bluetooth etc widget, WeatherBug widget (as the HTC Weather widget cannot identify my location) and 8 apps (Facebook, Movies, cab4me, Photos, BodyFitness, YouTube, WaveSecure, Shazam)
3rd Right: Bookmarks widget (full screen)
3rd Left: HTC Music widget, 4 apps (go!Lyrics, ShopSavvy, Places Directory, Last.fm)
I like the look of HTC Messages widget but IMO it's slow and accessing via app is faster. I used to use HTC Mail widget but it can't seem to access SSL encrypted email account so I use K-9 mail instead and it pushes my emails (I think).