I tried a bunch with WordPress 3.0.1 and I have decided to go with Slickr Flickr.  There is a few hour delay in getting photos to display even if you delete your cache, but besides that, this plugin is great.

How To Use Slickr Flickr To Create a Slideshow Or Gallery

• Log in to your Flickr account and tag all the photos you want to display on a particular page of your wordpress site. If your tag is more than one word make sure you place double quotes around the tag e.g “South Africa”
• Back on your wordpress site put into your post, page or sidebar, the following shortcode [slickr-flickr tag=”South Africa”]

How to Use the Plugin

The Flickr show is included within a post or a widget using the slickr-flickr short code

For example to show my pictures from Flickr that have been tagged with “bahamas” I would use :

[slickr-flickr tag=”bahamas”]

The Slickr Flickr Attributes (Parameters) are as follows:

• tag – identifies what photos to display – (but is ignored where the search is for friends, groups or favorites)
• id – the Flickr ID of the user – you can get this from http://idgettr.com/
• group – set to ‘y’ if the Flickr Id belongs to a group rather than a user (default is n)
• api key – your Flickr API key – this allows you to fetch up to 50 rather than just 20 photos
• search – photos (default), favorites, friends, groups or sets
• items – maximum number photos to display in the gallery or slideshow (default is 20)
• type – gallery, galleria or slideshow (default is gallery)
• sort – date, title, or description
• direction – ascending or descending – used when sorting photos
• orientation – landscape or portrait (default is landscape)
• size – small, medium, large or original (default is “medium” but only use “original” or “medium” for galleries and only use “large” if you actually have large photos on Flickr – over 1024 width typically)
• orientation – landscape or portrait (default is landscape)
• thumbnail_size – square (75x75px), thumbnail (100x75px), small (240x180px) – default is square
• thumbnail_scale – percentage scaling factor – default is 100 – recommend the range is between 50 and 100 to maintain image quality and performance
• border – show a border around the slideshow images – on or off (default off)
• captions – whether captions are on or off (default is on)
• delay – delay in seconds between each image in the slide show (default is 5)
• autoplay – on or off (default is on) – only applies to the galleria right now
• start – number of the starting slide in the slideshow or ‘random’ for a random start (default is 1) – only applies to the slideshow
• link – send the user to another URL when they click on the slideshow
• flickr_link – on or off (default off) – make the caption a link back to the photo on Flickr
• descriptions – on or off (default off) – show the photo description underneath the caption
• attribution – line that can be used to credit the photographer above the slideshow or gallery
• photos_per_row – narrow the gallery to limit the number of photos per row – values would typically be in the range from 2 to 6

You can set the parameters on each individual slideshow or set default values using the Admin Settings.