We just bought a new pre-lit artificial tree this year. We bought the General Electric "Just Cut" Frasier Fir (it was 7.5 feet tall with clear lights). I really love it because the branches look so realistic. Plus, it's nice and wide at the bottom, which was important to us since we have lots of ornaments and can't fit them on a skinny tree. Evidently the "Just Cut" line of GE trees is their line with the most realistic appearance.
Here's a link online:
http://shop.christmascentral.com/items/item.aspx?itemid=6583055
However, we got ours at Home Depot for around $200, unlike the steep price on the website above. They sold out at all our local Home Depots Thanksgiving weekend, but maybe they have some left in your neck of the woods.