G&G UMP in 2004 or 2005. It was awesome. I don't like big weapons, so it was a good fit for me. I also loved the construction of the body. I traded it away later and have regretted it ever since.
Moved on to a JG HK416 that I was afraid would suck, but it was actually awesome. The plastic body was a little cheap looking, but the gun performed well and I really liked everything else about it. Ended up selling it when I didn't go out and use it for awhile and needed some spending money. The person who has it now has painted it and it looks great.
I now have two Cansoft guns, as you can see in my sig.
Barrie, Ontario, Canada