Well, i've been working for about a week on my entry for the XCMC #10 and now i have 6 different monster and i can't figure out which to enter, which caused a realization in me... Monsters are way easier to build in 4e than they were in previous editions. The DM toolkit in the DMG makes basically allows the DM to put together a monster in a matter of minutes rather than days. I'm having more a problem thinking up backstory and lore for these creatures than actually putting them together.
I will start posting some of my creations here up once or twice a week. Hopefully i'll end up putting a bunch of them all together in a PDF of some kind and people will download and use them. Take Care