The Emerald 116 machine is a great basic model.  It can handle a variety of fabrics from thick jeans to light cottons.  Simple mechancial design for ease of use and suitable for all levels of sewer.  It has some great practical features like built in needle threader, one step buttonholes and slide out sewing reference chart.
 
Other features
16 built in stitches
Adjustable width and length
Adjustable foot pressure
Slide off accessory tray for free arm
Hard Cover
Built in Carry handle
Top loading bobbin
clip in presser feet
Hold down reverse button
Drop feed teeth
approx 8kgs
8 presser feet included- Utility Foot A, Utility Foot B, Buttonhole Foot C, Adjustable Blind Hem Foot D, Zipper Foot E, Non-stick Glide Foot H, Edging Foot J, Automatic Buttonhole Foot R