Expected Formatted Results??

Hi All,
I am kindly seeking for help.
I have a table(MyTable) which is defined as (date datetime, ID char (10), and R, P,M,D&Y are all float) and the layout is as following:
Date ID R P M D... Y
1/1/90 A 1 2 3 4... 5
1/2/90 A 2 3 4 5... 1
...
2/11/05 A 3 4 5 6... 2
1/1/90 B 1 2 3 4... 5
1/2/90 B 2 3 4 5... 1
...
2/11/05 B 3 4 5 6... 2
...
The expected query results look like: ( this results from Date, ID and R fields)
Date A B
1/1/90 1 1
1/2/90 2 2
...
2/11/05 3 3

The SQL I wrote:
select date, ID,
A=sum(case when ID=A then R else 0 end),
B=sum(case when id=B then R else 0 end)
from MyTable
Group by date

I would also like to get another set of results with the same format but from date,ID and P fields:
Date A B
1/1/90 2 2
1/2/90 3 3
...
2/11/05 4 4

select date, ID,
A=sum(case when ID=A then P else 0 end),
B=sum(case when id=B then P else 0 end)
from MyTable
Group by date

The problem with that is if I have thousands of ID in MyTable I have to "hard code" thousands times and the same problem with the fields/columns. Is there any easier way to do this?
I also would like to insert the results into a table/view which will be refreshed whenever MyTable gets updated.

Any suggestion/comments are highly appreciated!
shiparsons