[Replication] Alternative to SQLMonitor (Replication Monitor)

SQL Server's Replication Monitor is great except for a few major issues
1) It has to be running all the time, and it consumes a large number of window resources.
2) Due to the way SQL reports issues in replication, it can show a publication as good, even if it's been erroring for 2 days.
3) It's active, not passive - I have to go look at it. It can't warn me via email or whatnot.

So, half a day digging through code and error messages, and I've come up with this. This is not fullproof by any stretch - I don't deal with Merge Replication, for instance. But in MY environment, it seems to work pretty well.

I'll see about adding a couple more fields, but I want to get this on paper.
(And yes, this is a request: if there's a better way than this, let me know)

--Courtesy of The Baking DBA
--Replication query that shows what's currently in error.
--1.01 added "delivering" exclusion, email, fixed 
--   line-too-long-breaks-blogspot formatting
IF OBJECT_ID('tempdb.dbo.##replication_errors') IS NOT NULL 
    DROP TABLE ##replication_errors

SELECT 
 errors.agent_id, 
 errors.last_time, 
 agentinfo.name, 
 agentinfo.publication, 
 agentinfo.subscriber_db,
 error_messages.comments AS ERROR
INTO ##replication_errors
FROM 
--find our errors; note that a runstatus 3 
--can be the last message, even if it's actually idle and good
(SELECT agent_id, MAX(TIME) AS last_time 
 FROM distribution.dbo.MSdistribution_history with (nolock)
 WHERE runstatus IN (3,5,6) 
 AND comments NOT LIKE '%were delivered.' 
 AND comments NOT LIKE ' GROUP BY agent_id) errors
INNER JOIN 
(SELECT agent_id, MAX(TIME) AS last_time 
 FROM distribution.dbo.MSdistribution_history with (nolock)
 WHERE runstatus IN (1,2,4) 
 OR comments LIKE '%were delivered.'
 GROUP BY agent_id) clean
 ON errors.agent_id = clean.agent_id 
 AND errors.last_TIME > clean.last_time
--grab the agent information
INNER JOIN distribution.dbo.MSdistribution_agents agentinfo
ON agentinfo.id = errors.agent_id
--and the actual message we'd see in the monitor
inner JOIN distribution.dbo.MSdistribution_history error_messages
ON error_messages.agent_id = errors.agent_id 
AND error_messages.time = errors.last_time
AND comments NOT LIKE '%TCP Provider%'
AND comments NOT LIKE '%Delivering replicated transactions%'

IF (SELECT COUNT(*) FROM ##replication_errors) > 0 
EXEC msdb.dbo.sp_send_dbmail
    @profile_name = 'email_profile',
    @recipients = 'blah@tbd.com',
    @subject = 'Replication errors'
   ,@query = 'select * from ##replication_errors'
   ,@query_result_header = 0

DROP TABLE ##replication_errors