I'll break it down from the pieces I personally own.
This 99 cent orc is 2 pieces, but simple to put together. A beginner could handle it. The glued piece is "both hands and the axe', but you don't have to deal with any spiky protrusions when you are applying pressure.
http://www.svgames.com/882670000.html
These kobolds are 2/99cents. The crossbow 'bow' has to be glued: a drop of krazy glue does it. I think a beginner could handle it. The trick is a drop of krazy glue- let it congeal slightly, and then just balance the cross-piece on the weapon-stock. It will harden in place.
http://www.svgames.com/883010000.html
This 99 cent guy is a bit harder to glue, the 'hands+club' is one part. But he's a cutie. A fearless beginner with some patience could handle it (It involves applying krazy glue and pressing the pieces together until the glue actually hardens.) The pieces are spiky so when you are applying pressure, that might be an issue.
http://www.svgames.com/885200000.html
This guy is one piece, and one of my favorite sculpts. Recommended! Everyone should have at least one.
http://www.svgames.com/882660000.html
These 2/99cents goblins are 1 piece I'm pretty sure. I did these a long time ago. Recommended!
http://www.svgames.com/881200000.html
For 10$ you could have 20 kobolds running around your battlefield.
KNOWN PROBLEMS: The WOTC Skeletal orcs and Zombie trogoldytes are very difficult to pin/glue. If you have issues with assembly- avoid those pieces. The Gallowsgaunt
looks like an advanced piece as well, but I've never owned one.
Don't be afraid to assemble, though. Some of the more challenging pieces are very very cool (the bugbear, the Otyugh) and not out of the realm of possibility to anyone with patience.