Actually, there is a way to use imagecache presets with the image module without patches. It involves creating a View that manually applies the imagecache preset to the image field (not imagefield). You'll need views customfield.
Create a view and add the relationships "Image:File" and "Image:Node." Then add fields "File:path," "Node->title," and "Customfield: PHP Code." Add this to your php customfield script:
//print var_export($data, TRUE); //reveals all available variables
$image_src = $data->files_image_filepath;
$imagecache_preset = "Front-Slide-ic"; //enter your own imagecache preset here
$attributes = array('class' => 'lightbox'); //if you want to add attributes
$image_title = $data->node_image_title;
print theme('imagecache', $imagecache_preset, $image_src, $image_title, $image_title, $attributes);
Using this method allows you to use Image Crop to manually select the crop area.