Text book suggestion for stochastic process

[happysauce]

Hello. I plan on doing independent study on the Stochastic Process and time series models. I have already learned two semesters worth of statistics (Mathematical Statistics and Applications by Wackerly, Mendenhall and Scheaffer). And I have taken a semester of multiple regression models. I have used a program called R script in these classes. My question is, do I have enough knowledge to understand time series and/or the Stochastic Process. If not then what should I explore before hand? Also what are good textbooks for these topics? I would prefer a book with applications too, not just theory.

Your input will help me significantly and for that I thank you. :)

 

[xepma]

Three books on R used in the context of finance and statistics are:

Cryer - Introductory Statistics with R
Chan - Time Series -- Applications to Finance with R and S-Plus
Zivot, Wang - Modelling Financial Time Series with S-Plus

And some mathematical background:

Brockwell, Davis - Introduction to Time Series and Forecasting

I find the books fairly accessible.