I think screencasts are a great way of communicating this kind of information. A bunch of us started a site called bioscreencast.com to organize a community of people involved in the life sciences that creates , shares and consumes screencasts.
Please could you upload your screencast created with jing on that site…

I have been meaning to check out geneious for a while; didnt know the free version could do what nuin talks about.

Hari

You can use Geneious with the same search pattern you used:

Open Geneious
Got to NCBI-> Nucleotide
On the search tab click more options
On the drop down list select “Organism”
Enter Haemophilus influenzae
Click on the plus sign and enter “WGS” in the new search box
Click search and you getthe same 576 results.

All the resulting sequences will be displayed on the tab below the search. The donwload takes a couple of minutes.
Go to Edit->Select all and then on Tools->Concatenate …

That’s it. The free version has the same features.