Most good quality Danish Oil contains Tung Oilso this will give the best of both worlds and at a lower price. I tend to use Danish oil most of the time and get really good results. I find the best way to apply the oil is to paint it on with a brush for the first coat and leave it for about ten...
MDF varies greatly depending upon where you by it from and price is not alaways a guide. The best way to judge MDF is by it's weight, the heavier the better. I pesonally prefer to use water reistant MDF which tends to have a green core. This type of MDF machines far better than most standard MDF...