T-SQL help (combining queries)

I am trying to pull two different information for each month of the year. However, I am having trouble with my SQL statement...I was wondering if someone can point me to the right direction.

SQL statement:
SELECT DatePart(mm, Reports.IncidentDate) as MM,
Count(Distinct Reports.ReportId) AS intNumIncidents,
CASE
WHEN RD.reportField_ID <> 563 THEN 0
WHEN RD.reportField_ID = 563 THEN avg(cast(RD.DataText as money))
ELSE 0
END AS AvgValue
FROM Reports left outer join reportData as RD on reports.reportID = RD.report_ID
WHERE (StoreNum = 33) AND
(Reports.intEnabled = 1) AND
((Reports.ReportType_Id = 1 OR Reports.ReportType_Id = 36) OR RD.reportField_ID = 563) AND
(DatePart(yyyy, Reports.IncidentDate) = 2004) AND
(RD.DataText <> '' AND RD.DataText is not null) AND
(Reports.intComplete = 1)
group by DatePart(mm, Reports.IncidentDate), RD.reportField_ID

- The intNumIncidents counts the number of incidents
-The AVGVALUE average it's monetary value in which the value is store in RD.reportField_ID = 563

the error I am getting is : Cannot convert a char value to money. The char value has incorrect syntax.
Basically, with the OR statement on ...OR RD.reportField_ID = 563, it will return all row containing a reportType_ID = 1 or 36 with different a reportField_ID <> 36. Thus, it wont be able to convert those variables. I can't figure out how to exclude those case when calculating my average.

If I replace the OR to an AND by the RD.reportField_ID = 563
( ((Reports.ReportType_Id = 1 OR Reports.ReportType_Id = 36) AND RD.reportField_ID = 563) AND )

SQL will return this
-------------------
MM | intNumIncidents | AvgValue
7 | 4 | 540.8550
8 | 4 | 148.2425
9 | 2 | 104.4800
10 | 4 | 136.3825
11 | 1 | 254.0000
12 | 2 | 198.3450

As you can notice, the data for Month 1-6 is missing.
If I run the intNumIncidents and AvgValue individually, it works fine...I want to combine these two queries into one to speed up my query. Please assist...I greatly appreciate anyone advise.

Thanks.

wrong syntax