Dumtom,
On the nasdaq, you want to learn on a "thick" stock. i.e. a stock that has many participants at each tier level. The thickest is CSCO, followed by ORCL, then INTC, DELL.
Once you get used to these kinds of stocks you move onto MSFT,KLAC,QLGC etc.
I adjust my size accordingly so on CSCO I trade 5000 share increments on MSFT I trade 2000 share increments. On Cisco losing 4 cents on 5000 shares is $200. On MSFT losing 10 cents on 2000 shares is $200. In other words stops are a lot tighter on a cisco than they are on a MSFT - but then again MSFT can give you 40 cents profit, Csco gives you 10 cents
The thicker stocks are easier to learn on since you can see the collapsing tiers easier.