Could stock trading benificial for the small investors, if so give idea to purchase stocks and the period?

I’m new to trading. I’ve taken a class in options trading and am reading everything I can on trading, timing, money management etc. I want to start out with a sizeable account ~$20,000.00 so I won’t get knocked out quickly while I’m getting the feel for the market. Is it possible to get a [...]

I’m with ameritrade and when I sell stocks, they make you wait three days until the cash settles, then you can use the profit to buy stocks again. Is there any stock trading company (etrade, scotttrade, charles schwab, fxcm) that doesn’t do that?

I been looking at Ameritrade, Scottrade, E-trade, etc. I do not no much bought stock trading but I do watch Crammer on Mad Money alot. What’s your opinion?