Applanet (Black market Android market, a bit glitchy but you can get free paid for Apps and games from here)
Juice Defender Ultimate: Customise your Battery usage.
Anti Virus Free
Beautiful Widgets
Fancy Widget Pro
DropBox
Mybackup
3G Watchdog
aTrackDog (Looks out for updates if you've got apps that aren't from the market)
Cover Art Downloader (Puts Album Artwork on music files)
Flashlight (A Torch with other random features)
Google Sky Map (A GPS mapped look at the stars)
Amazon Kindle
Zedge (Cool ringtones and Wallpapers)
TV Thailand (Streamed Thai TV for the Missus)
TVShowStreams (Best App I've got, £3, has every episode of every TV show available if you've got wifi connection, from ThunderCats to Sopranos, The Office to The Wire.

Phone my PC (Remotely control your PC from anywhere via your phone screen

Games:
All the Angry Birds (Free)
Contract Killer (Free)
Modern Combat 2:Black Pegasus (Call of Duty on your phone, play against 9 other people online, stupidly good and seamless)
Dolphin HD is worth checking out as a browser, it's very similar to Firefox but Mozilla are still messing about with their mobile browser, it hasn't even got flash yet.
I'm happy with the stock Gingerbread browser but Dolphin HD has tabs and addons like FF.
