usually the bundled stuff will not be good, it'll be ok for starters, but sooner or later, u'll need to replace them..
a good bag would cost u around RM200-300, or even more, depending on your needs, some can hold laptops, and comes with rain coat, while the cheaper ones may just give ways after u put too much weight on it..
UV filter also has product that ranges from the cheap less than Rm50- more than Rm100, again, depending on your needs, cheaper ones may just be a piece of glass, while the expensive ones will be multi-coated.
tripod, again depending on your requirements, u can either settle for those cheap ones around RM50 or those expensive ones ranging from RM300-RMxxxx, cheaper ones will be able to hold less weight, less sturdy, and will probably fail anytime soon than u can imagine.. it's advisable to invest in a good one, cause u'll be placing all your investment on the tripod, and u wont want it to collapse when u are using it, and let all your investment goes along with it..
a typical cleaning kit consist of a blower, a microfibre cloth, and maybe some fluid cleaner, costing around RM30-50, better ones would cost RM50 or more for just the blower alone..
the 50mm f1.8 should cost around RM270-290 for a brand new set, if u can find it at RM250, i'll say grab it before the boss change his mind..

look for those with warranty left if u're worried, otherwise drag any photographer friend of yours to check it for u when u COD..

haha, ask and i believe someone would lend u a helping hand..

make a gallery for entry level/amateur and pro lah..
seperate by 3 digit model/2 digit model/1 digit model..
so even if user upgrade, there'll still be members in the gallery..