Here are some plugins which I’m using* that seem to work well (they can be downloaded from this page):

Simple contact form with CAPTCHA
Meta SEO Pack
Flow-Player
Kimili Flash Embed
Social Media Widget
Edited config file for Social media Widget – no “email” button

Notes…..
Kimili Flash Embed: This is a bit backwards, but….under settings choose, or set, the following: “Create a reference to SWFObject.js? = No” (near the bottom) – and choose “Static Content” – not “Dynamic” (at the top).
Social Media Widget: If installed, without an edit, the social media button is nice and simple but it creates a kind of funky looking email button, by default. And that’s a fairly dumb thing to include, regardless of how it looks; if you click on the darned thing the webmaster’s email pops up in the visitor’s default email client…..argh! I’ve provided an edited config file (above – as an independent download) which contains the original code, but, with php code edits which causes that portion of the file to be ignored. I would recommend using this, versus the stock config file. If you want the world to know your email address, at the click of a button, then use the stock config file.

Here’s a complete list, as of January 12th, 2012:

Akismet
Audio player
Cimy Swift SMTP
Code Markup Code Markup
Compact Archives
Configure SMTP
Contact Form 7
drainware
Fast Secure Contact Form
FV WordPress Flowplayer
Hello Dolly
ICIT Weather widget
Kimili Flash Embed Kimili Flash Embed
Lazyest Gallery Lazyest Gallery
Lazyest Gallery Extra Fields
Local Time Clock
MediaElement.js – HTML5 Audio and Video MediaElement.js
Meta SEO Pack Meta SEO Pack
mmmp3
MP3 Player plugin
My Quicktags
NextGEN Gallery
Role Scoper Role Scoper
Select Social Media Widge
Universal Post Manager
WP-SWFObject
WP Anti Spam
WPaudio WPaudio
WP Content Filter