AK Notepad- Easy, simple notepad app, the best one in my opinion
AnyCut- Lets you make a shortcut out of pretty much anything, i.e, phone contact, txt contact etc..
Astro File Manager- Pretty self explanatory, allows you to manage your file, windows type style
G-Backup Full (Paid)- Free version is a trial, it was so good i actually bought it, backs up all your sms/mms type of messages to your gmail account
I Music-
http://www.greencode.me/ Allows you to download music directly to your Droid, one of the BEST reasons to own a Droid/Android phone in my opinion ( will post link to where to get after work )
Meebo IM- Have all your IM accounts in one spot , i.e AIM, Facebook, Myspace etc..
MyBackup- Backs up all your contact to your gmail account
RingDroid- edit/cut parts of your favorite songs and allows you to set them as Ringtone or Notification, used in conjunction with Imusic and BAM! Iphone what!?
ShopSavvy- Awesome Barcode Scanner
SportsTap- If your into sports, this is the app to keep you updated on all sports related news
Taskiller- Apps slowing things down? Get this to free up space, full version is completely free, even has a nice choice of a small widget or large widget that allows one button app kills!