F15E Strike Eagle (it can carry bombs allright, they went after Scud missles among other things)
F16 Falcon (deployed sometimes as close ground support - it sure as hell can carry bombs)
F/A18 Hornet (can definately carry bombs)
all these aircraft can perform strike missions and are designed to do so, and they do so very well, they can also boogy too, and that is another one of their roles.
in today's air force we are trying to make the most out of a single airframe in order to save costs.
traditional bombers are larger and are more vulnerable to both fighters, AAA (flak), and ground to air missle fire. so you send in something smaller, quicker and more manouverable which can do the same job.