The following macro will do the first one - note, you don't need wildcards
for this.  However, you need to realise that when the bold font is applied,
the text may no longer all fit on the one line.

Selection.HomeKey wdStory
Selection.Find.ClearFormatting
With Selection.Find
   Do While .Execute(FindText:="2005", MatchWildcards:=False,
Wrap:=wdFindStop, Forward:=True) = True
       If Selection.Range.Start = Selection.Bookmarks("\line").Range.Start
Then
           Selection.Bookmarks("\line").Range.Bold = True
       End If
       Selection.Collapse wdCollapseEnd
   Loop
End With

And, the following will change the font size for lines containing a hyphen.
Once again, you don't need wildcards, but when you reduce the font, you may
change the linebreaks.

Selection.HomeKey wdStory
Selection.Find.ClearFormatting
With Selection.Find
   Do While .Execute(FindText:="-", MatchWildcards:=False,
Wrap:=wdFindStop, Forward:=True) = True
           Selection.Bookmarks("\line").Range.Font.Size = 8
       Selection.Collapse wdCollapseEnd
   Loop
End With

Hi James,

Maybe the macros by Doug will do the trick?
Since a line will probably break differently when you make part of it bold,
or change the font size, you may really mean paragraphs?

It would probably be better to assign a style that's bold (or 8 pt) instead
of manual formatting.

1) If "2005" isn't likely to appear anywhere but at the start of a
paragraph, you could do a wildcard search for "2005[!^13]@^13".
Else, you could replace (using wildcards) ^132005 with ^13$$2005, then do a
second search to apply the bold style to all paragraphs containing $$ (Find
what: $$, Replace with: ^& plus that style), and finally remove $$ (replace
with nothing).
(BTW, I have suggested that Word should have wildcard anchors for the start
and end of a paragraph. You might make such a suggestion to MS also. Then
you'd only need one find/replace for this.)

2) Simply put the hyphen in "Find what", and the 8 pt paragraph style in
"Replace with", in a regular find/replace without wildcards.
Or you could replace the hyphen with "Format > Paragraph > Alignment:
Center", and then replace that center alignment with Font size 8 pt and
alignment=left in a second replacement (... if you don't have centered
paragraphs).

Regards,
Klaus