You can mention other programs if you want
Press REleases are very smart and can help especially when the competition is intense!
Unless you are going for difficult high competition keywords you usually do not have to do much outside of the BU Blog Network,
Unless you NEED the extra links or work - I would say don't do it unless all else fails
Do what you know works and thenback off a little - 99 times out of a 100 you'll find it will work without buying extra programs or link packages or resorting to spammy blasting techniques