Hi Dan,
If the swirl marks are fairly minor and you're prepared to put in a lot of effort and have plenty of patience, you should be able to get them out by hand - it will just take a lot longer than it would do if you had a machine.
By hand, our recommendation would be to use the Poorboys Super Swirl Removers - you could try using SSR1 first to see if this is enough to remove the swirls, if it isn't, you can then step up to SSR2, but you will need to then refine this again afterwards with SSR2.
http://www.autoperfection.com/shop/Poorboys-Super-Swirl-Remover-1-16oz.htmlhttp://www.autoperfection.com/shop/Poorboys-Super-Swirl-Remover-2-16oz.htmlAs Stealth has already mentioned - clay it before hand to make sure you remove any contaminants on the paint that washing alone won't remove.
Once you've hand polished, if there are still some minor imperfections in the paint you could look at possibly applying a glaze before you wax... this will not only enhance the overall finish by adding depth to the gloss levels, but it will also help to mask any imperfections left, as it acts as a filler as well as a glaze. The obvious choice for you would be Poorboys Black Hole, as it is designed specifically for darker coloured cars and is an excellent product.
http://www.autoperfection.com/shop/Poorboys-Black-Hole-Show-Glaze-16oz.htmlFinally you need to apply some protection, either by way of wax or sealant, whichever suits you best.
Hope this helps
Taryn and Jim
