QReports and SQL Question

Hi Experts, this should be an easy one.....

I have the following tables in an Access DB:

ACCOUNT TABLE
Account_ID (Join to Transactions Table)
Bank_Name
Account_Number
Account_Name
Account_Description
Account_Balance
Current_Ind

TRANSACTIONS TABLE
TranID
Account_ID (Join to Accounts Table)
Trans_Date
Trans_Description
Trans_Reference
Trans_Debit
Trans_Credit
Trans_Join_ID

What I want to do is generate a quick report that shows the sum of Trans_Credit for each account depending on the type of Trans_Decription the user selects.

For example:
If the user types in 'Interest', I want a query that will look at the Transactions table and Sum the Trans_Credit for each account where the Trans_Description is like 'Interest'

Output should look like:
Account Name      Description            Total
Account1            Interest            $50.00
Account2            Interest            $12.67
Account3            Interest            $79.20
...

I started it off like below but I think I am WAY off  :o(

SELECT Accounts.Account_Name, Transactions.Trans_Description, Sum(Transactions.Trans_Credit)
FROM Accounts, Transactions
WHERE Accounts.Account_ID = Transactions.Account_ID
AND Trans_Description like '%Interest%';