Formula for Consolidating Array Values from a Column & Calculating Corresponding Cells

Please help. I've created a form in google docs spreadsheets for employees to enter information into a daily time sheet record that is visible to administrative staff only once entered. The names entered into the form will not be fixed (we've got independent contractors across CA) but since the information will be recorded daily the spreadsheet will have multiple entries by any given employee per day for every calendar month.

What I need to do is the following:

Match entries on "Sheet 4" Column A with the same names in column, total the number of hours & pay that are corresponding in Columns B & C, and re-list in 4 new Columns. All corresponding to each other, one by Name (representing only one name entry per month in new column #1), by dates (dates for one month all included in one cell & new row/cell for another month in new column #2, total hours calculated per month (in new column #3, and total pay calculated per month (in new column #4).

Example:

New Col #1.....New Column #2.....New Column #3.......New Column #4
Tom Hanks......9/2,9/3, 9,10,.......20hrs....................$300
Tom Hanks......8/1, 8/4. 8/30,......40hrs....................$600
Collin Hanks....9/4, 9/6, 9/30,.......100hrs..................$1,000
R.Williams.......6/4, 6/5, 6,15,.......25hrs....................$400
R.Williams.......9/1, 9/15, 9/21,.....80hrs....................$2,500

See attachment for details.

Any help someone could give on this would be awesome!!