I haven't seen this one mentioned anywhere in the huge number of ColdFusion 8/Scorpio posts that have been popping up lately. It's a relatively minor addition to the cfmail tag for setting message priority. In ColdFusion 6.x/7.x, if you wanted to set message priority, you needed to use a separate cfmailparam tag like so:

view plain print about
1<cfmail
2    from="me"
3    to="you"
4    subject="Q1 Numbers">
5    
6<cfmailparam name="priority" value="high">
7
8I need you to take a look at this quarter's numbers ASAP!
9</cfmail>

In ColdFusion 8, the same email can be written like this:

view plain print about
1<cfmail
2    from="me"
3    to="you"
4    subject="Q1 Numbers"
5    priority="high">
6I need you to take a look at this quarter's numbers ASAP!
7</cfmail>

The priority attribute is optional and can contain an integer (1-5 with 1 being the highest priority) or string value (highest|urgent, high, normal, low, and lowest|non-urgent).

This isn't huge, I know, but it's just one more way ColdFusion 8 makes even little things easier than ever before.